Category: 2253-73-8

Study on the Catalytic Behavior of Bifunctional Hydrogen-Bonding Catalysts Guided by Free Energy Relationship Analysis of Steric Parameters was written by Yang, Chen;Wang, Jie;Liu, Yang;Ni, Xiang;Li, Xin;Cheng, Jin-Pei. And the article was included in Chemistry – A European Journal in 2017.SDS of cas: 2253-73-8 The following contents are mentioned in the article:

Free energy relationship (FER) studies to correlate steric parameters with the enantiocatalytic performance of bifunctional tertiary-amine hydrogen-bonding catalysts, including (S,S)-cyclohexane-1,2-diamine-derived thioureas, Cinchona alkaloid derived thioureas, and (S,S)-cyclohexane-1,2-diamine-derived squaramides, in Michael reactions revealed that the reactions are much favored by catalysts with less bulky N-substituents. The observed FERs are independent of the chiral scaffold and hydrogen-bond donor, and deepen the understanding of current bifunctional hydrogen-bonding catalysts. Moreover, DFT calculations were performed to interpret the observed high reactivities of thioureas with less bulky substituents. In particular, the computations demonstrated the advantage of a benzyl thiourea catalyst, in which an extra CH···π interaction between catalyst and substrate is the key factor. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8SDS of cas: 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.SDS of cas: 2253-73-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Design, Synthesis, and Biological Activity of β-Carboline Analogues Containing Hydantoin, Thiohydantoin, and Urea Moieties was written by Huang, Yuanqiong;Guo, Zhonglin;Song, Hongjian;Liu, Yuxiu;Wang, Lizhong;Wang, Qingmin. And the article was included in Journal of Agricultural and Food Chemistry in 2018.Electric Literature of C4H7NS The following contents are mentioned in the article:

A series of novel β-carboline derivatives was designed by combining the anti-tobacco mosaic virus (TMV) lead compound tetrahydro-β-carboline ester with the hydantoin, thiohydantoin, and urea motifs. These derivatives were synthesized from tetrahydro-β-carboline ester via a structural diversity-oriented synthesis in one step, and their biol. activities were evaluated. Most of the derivatives exhibited anti-TMV activity higher than that of com. plant virucide ribavirin. Compared with the lead compounds, some of these derivatives showed good insecticidal activity against Plutella xylostella and Culex pipiens pallens. At the same time, these derivatives also showed broad-spectrum fungicidal activity. The systematic study provides strong evidence that the hydantoin, thiohydantoin, and urea motifs of these mols. can improve and modulate the activities of the analogs of natural products. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Electric Literature of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Electric Literature of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Effect of gamma irradiation on the shelf-life and physico-chemical quality of ready-to-cook (RTC) drumstick (Moringa oleifera) pods was written by Tripathi, J.;Variyar, P. S.. And the article was included in LWT–Food Science and Technology in 2018.Computed Properties of C4H7NS The following contents are mentioned in the article:

Effect of radiation treatment (0.5, 1, 1.5, 2 and 2.5 kGy) and storage (10 °C; 15 d) on the quality of RTC drumstick was investigated using full factorial exptl. design. The data obtained for total plate count, yeast & mold count, texture, color & sensory quality were fitted into cubic polynomial equations and radiation dose required for maximum storage duration with acceptable microbial load (<10⁵ CFUg^-1) and sensory quality (overall acceptability > 5) was determined An improved shelf-life of the product (12 d) with desired sensory and microbial quality was obtained at a dose of 1 kGy. Better retention of phenolics and isothiocyanates in the irradiated product compared to control (non-irradiated) during entire storage duration (12 d) was demonstrated. Presence of iso-Pr, 2-Bu and iso-Bu isothiocyanate in drumstick pods is demonstrated here for the first time. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Computed Properties of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Computed Properties of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mass spectra of new heterocycles: XVI. Electron impact study of alkyl 5-aminothiophene-2-carboxylates was written by Klyba, L. V.;Nedolya, N. A.;Sanzheeva, E. R.;Tarasova, O. A.. And the article was included in Russian Journal of Organic Chemistry in 2017.Recommanded Product: Isopropylisothiocyanate The following contents are mentioned in the article:

Synthesis and electron impact mass spectra of alkyl 4-alkoxy-5-amino-3-methylthiophene-2-carboxylates were studied. These compounds, except for 4-(1-ethoxyethoxy) and 4-(ferrocenylmethoxy) derivatives, gave rise to a stable mol. ion whose decomposition followed three pathways. The main fragmentation pathway of the mol. ion was elimination of alkyl radical from the 4-alkoxy group, the second pathway involved expulsion of alkoxy group from the ester moiety, and the third pathway was decomposition of the thiophene ring. The mol. ions of 4-(1-ethoxyethoxy)thiophenes decomposed mainly via elimination of Et vinyl ether mol. with formation of [M-VinOEt]^+· odd-electron ion, and fragmetation of the latter followed general pathways. In the mass spectra of 4-(ferrocenylmethoxy)thiophenes, the most abundant were ferrocenylmethyl ion with m/z 199 (I_rel 100%) and fragmet ions derived therefrom. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Reagent-Controlled Divergent Synthesis of 2-Amino-1,3-Benzoxazines and 2-Amino-1,3-Benzothiazines was written by Putta, V. P. Rama Kishore;Vodnala, Nagaraju;Gujjarappa, Raghuram;Tyagi, Ujjawal;Garg, Aakriti;Gupta, Sreya;Pujar, Prasad Pralhad;Malakar, Chandi C.. And the article was included in Journal of Organic Chemistry in 2020.Reference of 2253-73-8 The following contents are mentioned in the article:

A reagent-controlled chemoselective process has been devised for the synthesis of 4H-1,3-benzoxazines and related biol. important heterocycles in high yields under mild conditions. These scaffolds could be efficiently constructed using two different chemoselective reactions that rely on the choice of reagents and reaction conditions. The treatment of various 2-amino-arylalkyl alcs. with isothiocyanates afforded thiourea intermediates, which were reacted in situ with mol. iodine in the presence of triethylamine to give 2-amino-4H-1,3-benzoxazines, whereas the corresponding 2-amino-4H-1,3-benzothiazines were obtained by the reaction of thiourea intermediates in the presence of T3P (a mild cyclodehydrating agent) and triethylamine as the base. The described protocol represents the first example for the synthesis of 4H-1,3-benzoxazines via the dehydrosulfurization method using mol. iodine as the reagent. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Reference of 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Reference of 2253-73-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Reagent-Controlled Divergent Synthesis of 2-Amino-1,3-Benzoxazines and 2-Amino-1,3-Benzothiazines was written by Putta, V. P. Rama Kishore;Vodnala, Nagaraju;Gujjarappa, Raghuram;Tyagi, Ujjawal;Garg, Aakriti;Gupta, Sreya;Pujar, Prasad Pralhad;Malakar, Chandi C.. And the article was included in Journal of Organic Chemistry in 2020.Recommanded Product: 2253-73-8 The following contents are mentioned in the article:

A reagent-controlled chemoselective process has been devised for the synthesis of 4H-1,3-benzoxazines and related biol. important heterocycles in high yields under mild conditions. These scaffolds could be efficiently constructed using two different chemoselective reactions that rely on the choice of reagents and reaction conditions. The treatment of various 2-amino-arylalkyl alcs. with isothiocyanates afforded thiourea intermediates, which were reacted in situ with mol. iodine in the presence of triethylamine to give 2-amino-4H-1,3-benzoxazines, whereas the corresponding 2-amino-4H-1,3-benzothiazines were obtained by the reaction of thiourea intermediates in the presence of T3P (a mild cyclodehydrating agent) and triethylamine as the base. The described protocol represents the first example for the synthesis of 4H-1,3-benzoxazines via the dehydrosulfurization method using mol. iodine as the reagent. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: 2253-73-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Essential Oil of Cynophalla flexuosa and its Cytotoxicity, Antioxidant, and Anti-Acetylcholinesterase Effect was written by Carvalho, N. K. G.;Camilo, C. J.;Nonato, C. F. A.;Leite, D. O. D.;Rodrigues, F. F. G.;Alves, D. R.;Morais, S. M.;Costa, J. G. M.. And the article was included in Chemistry of Natural Compounds in 2021.Name: Isopropylisothiocyanate The following contents are mentioned in the article:

The interest in glucosinolate (GLS) hydrolysis products has grown due to their preventive potential against diseases by inducing a variety of physiol. functions, including antioxidant activity, enzymic regulation, apoptosis and cell cycl e control, thus inhibiting the development of various types of cancer. These are biol. inactive compounds which, when undergoing enzymic hydrolysis by β-thioglucosidase (myrosinase), produce isothiocyanates, nitriles, and thiocyanates, which act in the defense of plants against herbivores and pathogens. As these are found expressively in the Capparaceae family, the objective of the present study is to analyze the chem. composition and to evaluate the toxicol., anticholinesterase, and antioxidant potential of the essential oil of Cynophalla flexuosa (L.) J.Presl, the search for active substances of which offers a way to study the chem.-biol. contribution of the oils. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Name: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Essential Oil of Cynophalla flexuosa and its Cytotoxicity, Antioxidant, and Anti-Acetylcholinesterase Effect was written by Carvalho, N. K. G.;Camilo, C. J.;Nonato, C. F. A.;Leite, D. O. D.;Rodrigues, F. F. G.;Alves, D. R.;Morais, S. M.;Costa, J. G. M.. And the article was included in Chemistry of Natural Compounds in 2021.Recommanded Product: Isopropylisothiocyanate The following contents are mentioned in the article:

The interest in glucosinolate (GLS) hydrolysis products has grown due to their preventive potential against diseases by inducing a variety of physiol. functions, including antioxidant activity, enzymic regulation, apoptosis and cell cycl e control, thus inhibiting the development of various types of cancer. These are biol. inactive compounds which, when undergoing enzymic hydrolysis by β-thioglucosidase (myrosinase), produce isothiocyanates, nitriles, and thiocyanates, which act in the defense of plants against herbivores and pathogens. As these are found expressively in the Capparaceae family, the objective of the present study is to analyze the chem. composition and to evaluate the toxicol., anticholinesterase, and antioxidant potential of the essential oil of Cynophalla flexuosa (L.) J.Presl, the search for active substances of which offers a way to study the chem.-biol. contribution of the oils. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tug-of-War between Two Distinct Catalytic Sites Enables Fast and Selective Ring-Opening Copolymerizations was written by Wang, Jianqun;Zhu, Yinuo;Li, Maosheng;Wang, Yanchao;Wang, Xianhong;Tao, Youhua. And the article was included in Angewandte Chemie, International Edition in 2022.Application In Synthesis of Isopropylisothiocyanate The following contents are mentioned in the article:

Ring-opening copolymerizations have emerged as a powerful approach towards the creation of sustainable polymers. Typical H-bonding catalysts for ring-opening are subject to a single catalytic site. Here we describe a H-bond-donor/Lewis-acidic-boron organocatalyst featuring two distinct catalytic sites in one mol. The ring-opening copolymerization of epoxides with anhydride mediated by these modular, and tunable catalysts achieves high selectivity (>99% polyester selectivity) and markedly higher activity compared to either of the di-thiourea analogs or any combinations of them. Calculations and exptl. studies reveal that the superior catalytic performance arises from tug-of-war between two differentiated catalytic sites: thiourea pulls off the propagating chain-end from boron center, simultaneously enhancing the role of monomer activation and also nucleophilicity of the propagation intermediates. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Application In Synthesis of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Application In Synthesis of Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Upcycling of dynamic thiourea thermoset polymers by intrinsic chemical strengthening was written by Feng, Haijun;Zheng, Ning;Peng, Wenjun;Ni, Chujun;Song, Huijie;Zhao, Qian;Xie, Tao. And the article was included in Nature Communications in 2022.Recommanded Product: Isopropylisothiocyanate The following contents are mentioned in the article:

Thermoset polymers are indispensable but their environmental impact has been an ever-increasing concern given their typical intractability. Although concepts enabling their reprocessing have been demonstrated, their practical potential is limited by the deteriorated performance of the reprocessed materials. Here, we report a thiourea based thermoset elastomer that can be reprocessed with enhanced mech. properties. We reveal that the thiourea bonds are dynamic which leads to the reprocessibility. More importantly, they can undergo selective oxidation during high temperature reprocessing, resulting in significant chem. strengthening within certain reprocessing cycles. This is opposite to most polymers for which reprocessing typically results in material deterioration. The possibility of having materials with inherent reprocessing induced performance enhancement points to a promising direction towards polymer recycling. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics