Category: esters-buliding-blocks

HPLC of Formula: C10H10O2. In 2019.0 J ORG CHEM published article about N-HETEROCYCLIC CARBENES; ARYLBORONIC ACIDS; BETA-BORATION; CARBONYL-COMPOUNDS; LIGANDS; HYDROGENATION; REDUCTION; PLANAR in [Miwa, Yuya; Kamimura, Takumi; Sato, Kiyoaki; Shishido, Daichi; Yoshida, Kazuhiro] Chiba Univ, Dept Chem, Grad Sch Sci, Inage Ku, Yayoi Cho, Chiba 2638522, Japan; [Yoshida, Kazuhiro] Chiba Univ, Mol Chiral Res Ctr, Inage Ku, Yayoi Cho, Chiba 2638522, Japan in 2019.0, Cited 39.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4.

The potential of using chiral bicyclic NHC ligands that exhibit modularity was investigated in the Cu-catalyzed asymmetric borylation reaction of alpha,beta-unsaturated esters. After screening for ligands and optimization of the reaction conditions, the corresponding products were afforded with good enantioselectivities (up to 85% ee).

HPLC of Formula: C10H10O2. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Miwa, Y; Kamimura, T; Sato, K; Shishido, D; Yoshida, K or concate me.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Formula: C13H8O2. Authors Rumyantsev, AV; Pichugov, AV; Bushkov, NS; Aleshin, DY; Strelkova, TV; Lependina, OL; Zhizhko, PA; Zarubin, DN in ROYAL SOC CHEMISTRY published article about in [Rumyantsev, Andrey, V; Pichugov, Andrey, V; Bushkov, Nikolai S.; Aleshin, Dmitry Yu; Strelkova, Tatyana, V; Lependina, Olga L.; Zhizhko, Pavel A.; Zarubin, Dmitry N.] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Vavilov Str 28, Moscow 119991, Russia; [Rumyantsev, Andrey, V; Bushkov, Nikolai S.] Moscow MV Lomonosov State Univ, Dept Chem, Vorobevy Gory 1, Moscow 119991, Russia; [Pichugov, Andrey, V; Aleshin, Dmitry Yu] D Mendeleev Univ Chem Technol Russia, Higher Chem Coll, Miusskaya Sq 9, Moscow 125047, Russia in 2021.0, Cited 33.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

We report the first examples of direct imidation of lactones giving the corresponding cyclic imidates via oxo/imido heterometathesis with N-sulfinylamines catalysed by a well-defined silica-supported Ti imido complex.

Formula: C13H8O2. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Rumyantsev, AV; Pichugov, AV; Bushkov, NS; Aleshin, DY; Strelkova, TV; Lependina, OL; Zhizhko, PA; Zarubin, DN or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Authors Matsumoto, Y; Tsuji, T; Nakatake, D; Yazaki, R; Ohshima, T in WILEY-V C H VERLAG GMBH published article about DONOR-ACCEPTOR CYCLOPROPANES; DIELS-ALDER REACTIONS; DIASTEREOSELECTIVE SYNTHESIS; THIOCARBONYL COMPOUNDS; DERIVATIVES; CYCLIZATION; RING in [Matsumoto, Yohei; Tsuji, Taro; Nakatake, Daiki; Yazaki, Ryo; Ohshima, Takashi] Kyushu Univ, Grad Sch Pharmaceut Sci, Maidashi Higashi Ku, Fukuoka, Fukuoka 8128582, Japan in 2019.0, Cited 35.0. SDS of cas: 103-25-3. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

The utility of thionoester as a 1,2-dipolarophile for [4+2] cycloaddition with cyclobutanones is described. The [4+2] cycloaddition reaction provided tetrahydrothiopyran, which is found in biologically active natural products, in high yield with high diastereoselectivity by using readily available TiCl4. This synthetic method was applicable to a wide range of thionoesters and cyclobutanones. The ketone and S,O-ketal functionalities of the product could be reduced with excellent diastereoselectivity. Furthermore, the C-O bond was transformed into a C-C bond, affording contiguous tetrasubstituted carbon centers.

SDS of cas: 103-25-3. About Methyl 3-phenylpropionate, If you have any questions, you can contact Matsumoto, Y; Tsuji, T; Nakatake, D; Yazaki, R; Ohshima, T or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article alpha-Branched Ketone Dienolates: Base-Catalysed Generation and Regio- and Enantioselective Addition Reactions WOS:000484154000022 published article about VINYLOGOUS ALDOL REACTION; ORGANOCATALYTIC MICHAEL ADDITION; MANNICH-TYPE REACTIONS; DIELS-ALDER REACTION; ALLYL ARYL KETONES; ASYMMETRIC-SYNTHESIS; GAMMA-BUTENOLIDES; CYCLIC-KETONES; ALPHA,BETA-UNSATURATED ALDEHYDES; 3-ALKYLIDENE OXINDOLES in [Urruzuno, Inaki; Mugica, Odei; Zanella, Giovanna; Vera, Silvia; Gomez-Bengoa, Enrique; Oiarbide, Mikel; Palomo, Claudio] Univ Pais Vasco UPV EHU, Dept Quim Organ 1, Manuel Lardizabal 3, San Sebastian 20018, Spain in 2019, Cited 137. The Name is Dimethyl 5-aminoisophthalate. Through research, I have a further understanding and discovery of 99-27-4. COA of Formula: C10H11NO4

In this study, the unique capacity of bifunctional BrOnsted bases to generate alpha-branched ketone dienolates and control both site- and stereoselectivity of their addition reactions to representative classes of carbon electrophiles (i.e., vinyl sulfones, nitroolefins, formaldehyde) is documented. We demonstrate that by using selected chiral tertiary amine/squaramide catalysts, the reactions of beta,gamma-unsaturated cycloalkanones proceed through the dienolate C alpha almost exclusively and provide all-carbon quaternary cyclic ketone adducts in good yields with very high enantioselectivities. A minor amount (<5%) of gamma-addition is observed when nitroolefins are used as electrophiles. The parent acyclic ketone dienolates proved to be less reactive under these conditions, and thus still constitute a challenging class of substrates. Quantum chemical calculations correctly predict these differences in reactivity and explain the observed site-specificity and enantioselectivity. COA of Formula: C10H11NO4. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Urruzuno, I; Mugica, O; Zanella, G; Vera, S; Gomez-Bengoa, E; Oiarbide, M; Palomo, C or concate me.

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Preparation of Palladium(II) Complexes of 1-substituted-3-phospholene Ligands and their Evaluation as Catalysts in Hydroalkoxycarbonylation WOS:000507468000005 published article about P-HETEROCYCLES; RESOLUTION; PHOSPHOLANE; METHOXYCARBONYLATION; PHOSPHETANES; RHODIUM(III); STYRENE in [Bagi, Peter; Herbay, Reka; Gyorke, Gabor; Keglevich, Gyorgy] Budapest Univ Technol & Econ, Dept Organ Chem & Technol, H-1111 Budapest, Hungary; [Pongracz, Peter; Kollar, Laszlo] Univ Pecs, Dept Inorgan Chem, H-7624 Pecs, Hungary; [Pongracz, Peter; Kollar, Laszlo] MTA PTE Res Grp Select Chem Syntheses, H-7624 Pecs, Hungary; [Timari, Istvan] Univ Debrecen, Dept Inorgan & Analyt Chem, H-4032 Debrecen, Hungary; [Drahos, Laszlo] Hungarian Acad Sci, Res Ctr Nat Sci, MS Prote Res Grp, H-1117 Budapest, Hungary in 2019.0, Cited 46.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Product Details of 103-25-3

A series of palladium(H) complexes incorporating l-substituted-3-methyl-3-phospholenes as the P-ligands were prepared from phospholene oxides by deoxygenation followed by complexation with PdCl2(PhCN)(2). The two 1-substituted-3-methyl-3-phospholene ligands were trans position to each other in the Pd(II)-complexes. As the ligands contain a P-stereogenic center, the Pd-complexes were obtained as a 1:1 mixture of two stereoisomers, the homochiral (R,R and S,S) and the meso (R,S) forms, when racemic starting materials were used. An optically active Pd-complex containing (R)-1-propyl-3-phospholene ligand was also prepared. Catalytic activity of an aryl- and an alkyl-3-phospholene-palladium(II)-complex was evaluated in hydroalkoxycarbonylation of styrene. The alkyl-derivative showed higher activity and selectivity towards the formation of the esters of 3-phenylpropionic acid. However, the overall activity of these PdCl2(phospholene)(2)-type complexes was low.

About Methyl 3-phenylpropionate, If you have any questions, you can contact Bagi, P; Herbay, R; Gyorke, G; Pongracz, P; Kollar, L; Timari, I; Drahos, L; Keglevich, G or concate me.. Product Details of 103-25-3

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2021.0 J CHEM RES published article about HIGHLY EFFICIENT; DIRECT AMIDATION; ESTERIFICATION; DERIVATIVES; OXIDATION; CATALYSIS; AMIDES; AMINES; GREEN; CONVERSION in [Wu, Xiaofang; Zhou, Lei; Li, Fangshao; Xiao, Jing] Hunan Univ Sci & Technol, Key Lab Theoret Organ Chem & Funct Mol, Minist Educ, Sch Chem & Chem Engn, Hunan Xiangtan Taoyuan Rd, Xiangtan 411201, Peoples R China in 2021.0, Cited 56.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Computed Properties of C10H12O2

A PCl3-mediated conversion of tert-butyl esters into esters and amides in one-pot under air is developed. This novel protocol is highlighted by the synthesis of skeletons of bioactive molecules and gram-scale reactions. Mechanistic studies revealed that this transformation involves the formation of an acid chloride in situ, which is followed by reactions with alcohols or amines to afford the desired products.

Computed Properties of C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Wu, XF; Zhou, L; Li, FS; Xiao, J or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

HPLC of Formula: C5H10O4. In 2020 IND ENG CHEM RES published article about SUGARCANE BAGASSE; DIETHYL MALEATE; DEPOLYMERIZATION; EFFICIENT; DELIGNIFICATION; OXIDATION; CLEAVAGE; MONOMERS; BIOMASS; PHENOL in [Li, Zhang-min; Long, Jin-xing; Zeng, Qiang; Wu, Yuan-hao; Cao, Ming-long; Liu, Si-jie; Li, Xue-hui] South China Univ Technol, State Key Lab Pulp & Paper Engn, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China; [Li, Zhang-min] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330022, Jiangxi, Peoples R China in 2020, Cited 39. The Name is Methyl 2,2-dimethoxyacetate. Through research, I have a further understanding and discovery of 89-91-8.

Catalytic conversion of lignin to versatile aromatic compounds is attracting increasing attention. However, it is highly desirable but challenging to produce a specific chemical with high yield through lignin depolymerization in a one-pot process because of the complex structure of the lignin molecule (mainly composed of H, G, and S units). In this study, a series of metal-based deep eutectic solvents (M-DESs) were prepared and used for the catalytic tailoring of lignin H units to produce value-added methyl p-hydroxycinnamate (MPC). In particular, M-DES ChCl[FeCl3](2) showed excellent catalytic performance for the selective production of MPC as the sole product with high yield and selectivity (105.8 mg g(-1) and 74.1%, respectively). Extensive characterizations using 2D HSQC NMR, C-13 NMR, and GPC demonstrated that MPC was obtained from the selective tailoring of p-coumaric acid (pCA) units via the cleavage of ester bonds in lignin. Furthermore, M-DES ChCl[FeCl3](2) also exhibited efficiency to other herbaceous lignins, and showed excellent recyclability. Therefore, this work provides an effective strategy for the valorization of lignin.

HPLC of Formula: C5H10O4. About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Li, ZM; Long, JX; Zeng, Q; Wu, YH; Cao, ML; Liu, SJ; Li, XH or concate me.

Reference:
Patent; U C B, Societe Anonyme; US4041077; (1977); A;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Chemistry very interesting. Saw the article Multiresponsive Luminescent Sensitivities of a 3D Cd-CP with Visual Turn-on and Ratiometric Sensing toward Al3+ and Cr3+ as Well as Turn-off Sensing toward Fe3+ published in 2020. Formula: C10H11NO4, Reprint Addresses Li, YW; Wang, SN (corresponding author), Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Shandong, Peoples R China.. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

By using the reduced Schiff base tricarboxylate ligand H(3)cip, one novel 3D Cd-based coordination polymer (Cd-CP) with the formula [Cd(Hcip)(bpea)(0.5)(H2O)](n) (H(3)cip = 5-(3-carboxybenzylamino)isophthalic acid, bpea = 1,2-bis(4-pyridyl)ethane) has been solvothermally synthesized. The prepared Cd-CP possesses a 4-connected CdSO4 net based on dinuclear {Cd-2} units. Luminescence measurements revealed that the complex exhibited ratiometric turn-on luminescence responses toward Al3+ and Cr3+ with a significant color change, which could be easily distinguished by the naked eye under ultraviolet light. Cd-CP can also respond to Fe3+ through a turn-off mechanism. Interestingly, the luminescence quenched by Fe3+@Cd-CP can be recovered and increased significantly by adding some competitive Al3+, while Cr3+ can only marginally increase the luminescence intensity of Fe3+@Cd-CP. Moreover, the detection of the three aforementioned metal ions can be realized by using Cd-CP-coated test papers, extending the potential application regions of the reported material to point-of-care tests and environmental field studies.

About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Yu, YE; Wang, YH; Yan, H; Lu, J; Liu, HT; Li, YW; Wang, SN; Li, DC; Dou, JM; Yang, L; Zhou, Z or concate me.. Formula: C10H11NO4

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Computed Properties of C10H10O2. Canestrari, D; Cioffi, C; Biancofiore, I; Lancianesi, S; Ghisu, L; Ruether, M; O’Brien, J; Adamo, MFA; Ibrahim, H in [Canestrari, Daniele; Cioffi, Caterina; Biancofiore, Ilaria; Lancianesi, Stefano; Ghisu, Lorenza; Adamo, Mauro F. A.; Ibrahim, Hasim] Royal Coll Surgeons Ireland, CSCB, Dept Chem, 123 St Stephens Green, Dublin 2, Ireland; [Biancofiore, Ilaria] IRBM Sci Pk SpA, Dept Med Chem, Via Pontina 30-600, I-00071 Pomezia, RM, Italy; [Ruether, Manuel; O’Brien, John] Univ Dublin, Trinity Coll, Sch Chem, Trinity Biomed Sci Inst, Dublin 2, Ireland published Sulphide as a leaving group: highly stereoselective bromination of alkyl phenyl sulphides in 2019.0, Cited 72.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4.

A conceptionally novel nucleophilic substitution approach to synthetically important alkyl bromides is presented. Using molecular bromine (Br-2), readily available secondary benzyl and tertiary alkyl phenyl sulphides are converted into the corresponding bromides under exceptionally mild, acid- and base-free reaction conditions. This simple transformation allows the isolation of elimination sensitive benzylic beta-bromo carbonyl and nitrile compounds in mostly high yields and purities. Remarkably, protic functionalities such as acids and alcohols are tolerated. Enantioenriched benzylic beta-sulphido esters, readily prepared by asymmetric sulpha-Michael addition, produce the corresponding inverted bromides with high stereoselectivities, approaching complete enantiospecificity at -40 degrees C. Significantly, the reported benzylic beta-bromo esters can be stored without racemisation for prolonged periods at -20 degrees C. Their synthetic potential was demonstrated by the one-pot preparation of gamma-azido alcohol (S)-5 in 90% ee. NMR studies revealed an initial formation of a sulphide bromine adduct, which in turn is in equilibrium with a postulated dibromosulphurane intermediate that undergoes C-Br bond formation.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Canestrari, D; Cioffi, C; Biancofiore, I; Lancianesi, S; Ghisu, L; Ruether, M; O’Brien, J; Adamo, MFA; Ibrahim, H or concate me.. Computed Properties of C10H10O2

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

SDS of cas: 89-91-8. In 2019 NATURE published article about GINKGO-BILOBA; TERPENE TRILACTONES; IDENTIFICATION; CHEMISTRY; GLYCINE; ACID in [Baker, Meghan A.; Demoret, Robert M.; Ohtawa, Masaki; Shenvi, Ryan A.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA; [Ohtawa, Masaki] Kitasato Univ, Grad Sch Pharmaceut Sci, Tokyo, Japan in 2019, Cited 29. The Name is Methyl 2,2-dimethoxyacetate. Through research, I have a further understanding and discovery of 89-91-8.

The Ginkgo biloba metabolite bilobalide is widely ingested by humans but its effect on the mammalian central nervous system is not fully understood(1-4). Antagonism of gamma-aminobutyric acid A receptors (GABA(A)Rs) by bilobalide has been linked to the rescue of cognitive deficits in mouse models of Down syndrome(5). A lack of convulsant activity coupled with neuroprotective effects have led some to postulate an alternative, unidentified target(4); however, steric congestion and the instability of bilobalide(1,2,6) have prevented pull-down of biological targets other than the GABA(A)Rs. A concise and flexible synthesis of bilobalide would facilitate the development of probes for the identification of potential new targets, analogues with differential selectivity between insect and human GABA(A)Rs, and stabilized analogues with an enhanced serum half-life(7). Here we exploit the unusual reactivity of bilobalide to enable a late-stage deep oxidation that symmetrizes the molecular core and enables oxidation states to be embedded in the starting materials. The same overall strategy may be applicable to G. biloba congeners, including the ginkgolides-some of which are glycine-receptor-selective antagonists(8). A chemical synthesis of bilobalide should facilitate the investigation of its biological effects and its therapeutic potential.

SDS of cas: 89-91-8. About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Baker, MA; Demoret, RM; Ohtawa, M; Shenvi, RA or concate me.

Reference:
Patent; U C B, Societe Anonyme; US4041077; (1977); A;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics