Tag: M.W=200-250

Jovanovic, Slobodan M. published the artcileInitiation of polymerization of methyl methacrylate by dithiocarbomate-based iniferters, Application of Benzyl diethylcarbamodithioate, the publication is Hemijska Industrija (2005), 59(11-12), 311-316, database is CAplus.

Twelve modified dithiocarbamates and a thiuram disulfide used for the initiation of Me methacrylate (MMA) polymerization were synthesized in this study. The polymerization of MMA was followed by determine the yield and molar mass of the obtained PMMA as a function of polymerization time. Four of the synthesized dithiocarbamates: S-benzyl-N,N-dibenzyldithiocarbamate, S-allyl-N,N-dibenzyldithiocarbamate, S-benzyl-N,N-diisobutyldithiocarbamate and S-benzoyl-N,N-diisobutyldithiocarbamate, as well as N,N,N’,N’-tetrabenzylthiuramdisulfide acted as iniferters. They were active as the initiators of the photo and/or thermally initiated radical polymerization of MMA in bulk and inert solvents (benzene and toluene). S-Benzyl-N,N-dibenzyldithiocarbamate can be successfully used for the initiation of MMA polymerization in a polar solvent such as dimethylacetamide.

Hemijska Industrija published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Application of Benzyl diethylcarbamodithioate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Priesner, Ernst published the artcileSpecificity of synthetic sex-attractants in Zygaena moths, COA of Formula: C14H26O2, the publication is Zeitschrift fuer Naturforschung, C: Journal of Biosciences (1984), 39C(7-8), 841-4, database is CAplus.

Species-specific sex-attractants are reported for western Palearctic Zygaena moths of the carniolica, viciae, filipendulae, and purpuralis species groups. The attractants were established by combined electrophysiol. and field behavioral studies and consist of ternary combinations of (Z)-7-dodecenyl acetate  [14959-86-5] with (Z)-9-tetradecenyl acetate  [16725-53-4] and a particular further (Z)-alkenyl acetate. Data on other Zygaenini taxa are included.

Zeitschrift fuer Naturforschung, C: Journal of Biosciences published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C14H26O2, COA of Formula: C14H26O2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kawano, Tomikazu published the artcileSynthesis and reaction of chiral 4,5-disubstituted 2-oxazolidinones from 3-ethoxy-6-[alkyl(tert-butoxycarbonyl)amino]hexa-2,4-dienoates in the presence of concentrated sulfuric acid supported on silica gel, Related Products of esters-buliding-blocks, the publication is Heterocycles (2000), 52(3), 1261-1278, database is CAplus.

Reaction of chiral 3-ethoxy-6-[alkyl(tert-butoxycarbonyl)amino]hexa-2,4-dienoates and related compounds with 97% concentrated sulfuric acid supported on silica gel proceeded stereo- and regioselectively to yield chiral 4,5-disubstituted N-alkyl-2-oxazolidinones. The oxazolidinones were converted to N-alkyl-2-pyrrolylacetates and 2-oxazolidinone derivatives, which can serve as a chiral auxiliary.

Heterocycles published new progress about 106391-88-2. 106391-88-2 belongs to esters-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Amide,Aldehyde, name is (R)-tert-Butyl (3-methyl-1-oxobutan-2-yl)carbamate, and the molecular formula is C10H19NO3, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kawano, Tomikazu published the artcileSynthesis, reaction, and structure of chiral N-methyl-2-oxazolidinones from 3-ethoxy-6-(N-methyl-N-tert-butoxycarbonyl)amino-2,4-hexadienoates, Application of (R)-tert-Butyl (3-methyl-1-oxobutan-2-yl)carbamate, the publication is Tetrahedron Letters (1997), 38(47), 8219-8222, database is CAplus.

N-methyl-2-oxazolidines I [(S)-CH₂Ph, (R)-CH₂Ph, (S)-CHMe₂, (R)-CHMe₂, H] and their enol Et ethers are obtained stereo- and regioselectively when Me₃CO₂CNMeCHRCH:CHC(OEt):CHCO₂Et are treated with concentrated sulfuric acid (1.0 equivalent) supported on silica gel in dichloromethane at 0° C.

Tetrahedron Letters published new progress about 106391-88-2. 106391-88-2 belongs to esters-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Amide,Aldehyde, name is (R)-tert-Butyl (3-methyl-1-oxobutan-2-yl)carbamate, and the molecular formula is C10H19NO3, Application of (R)-tert-Butyl (3-methyl-1-oxobutan-2-yl)carbamate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Gorshkov, N. I. published the artcileMixed-Ligand Gallium Complexes with N-Vinylpyrrolidone-N-Vinylformamide-N-Vinyliminodiacetic Acid Terpolymers Containing Dithiocarbamates as a Coligand, Formula: C12H17NS2, the publication is Doklady Chemistry (2019), 485(2), 105-108, database is CAplus.

Terpolymers with a mol. weight of 65 and 13 kDa containing 90 mol % of N-vinylpyrrolidone, 7 mol % of N-vinylformamide, and 3 mol % of N-vinyliminodiacetic acid units have been synthesized. Diethyldithiocarbamate and benzyldithiocarbamate have been used as coligands. The mixed-ligand complexation with Ga³⁺ ion has been studied by HPLC. The composition and structure of the resulting metal-polymer complexes have been determined by exclusion chromatog. and spectral (IR, ¹H NMR) data.

Doklady Chemistry published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Formula: C12H17NS2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Hobdy, Erole published the artcileAN-9 (Titan), Recommanded Product: (Pivaloyloxy)methyl butyrate, the publication is Current Opinion in Investigational Drugs (Thomson Scientific) (2004), 5(6), 628-634, database is CAplus and MEDLINE.

A review. Titan is developing AN-9 for the potential treatment of various cancers. AN-9 is a histone deacetylase inhibitor analog of butyric acid that causes apoptosis of cancer cells through signaling cellular differentiation. In Mar. 2001, a phase I/II study involving patients with liver tumors was initiated. By Nov. 2001, enrollment had been completed in a second phase II study of refractory non-small-cell lung cancer (NSCLC). In June 2003, Titan began enrollment for a phase IIb trial of AN-9 in combination with docetaxel in patients with NSCLC.

Current Opinion in Investigational Drugs (Thomson Scientific) published new progress about 122110-53-6. 122110-53-6 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester,Inhibitor, name is (Pivaloyloxy)methyl butyrate, and the molecular formula is C10H18O4, Recommanded Product: (Pivaloyloxy)methyl butyrate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Skalicka, M. published the artcileContents of Selected Elements in the Blood Serum of Broiler Chickens After Supplementation of Humic Substances, Application of Propyl 3,4,5-trihydroxybenzoate, the publication is Folia Veterinaria (2022), 66(2), 46-53, database is CAplus.

This study was conducted to determine the concentrations of mineral substances, such as: calcium (Ca), magnesium (Mg), copper (Cu), and zinc (Zn); in the blood serum of broiler chicks after supplementation of humic substances. Group 1 (G1) was supplemented with 0.7% Humac Natur Mycosorb (HNMy); G2 with 0.7% Humac Natur Monogastric (HNM); G3 with 0.3% HNMy; and the control group (GC) received a basal diet without any supplements. In the G2 group, the serum Ca level increased slightly compared to the other exptl. groups. A statistically significant decrease (P < 0.001) in the blood serum of Mg was detected in the broilers from group G2 (0.60 mmol.l^-1) and G1 (P < 0.05; 0.68 mmol.l^-1) in comparison to the GC. The Zn in the blood serum of broilers from group G2 (22.05μmol.l^-1) was significantly increased (P < 0.05) in broilers from group G2 in comparison to the control group (19.47μmol.l^-1) and G1 group (19.61μmol.l^-1). The serum Cu (12.72μmol.l^-1) was significantly increased (P < 0.001) in broilers from group G2 in comparison to the GC (10.28μmol.l^-1). In the group G1 there was a significant decrease (P < 0.05) in the level of the Cu in the blood serum (8.69μmol.l^-1) in comparison to the serum Cu in broilers from groups G3 (10.45μmol.l^-1) and G2 (12.72μmol.l^-1). The addition of Humac Natur Mycosorb (0.3% and 0.7%) in the feed caused a strong correlation in the blood serum between the Ca and Mg (r = 0.7494; r = 0.7648). The addition of 0.3% Humac Natur Mycosorb in the feed caused a high neg. correlation (r = -0.7078) in the blood serum between the Mg and Zn.

Folia Veterinaria published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C19H17N2NaO4S, Application of Propyl 3,4,5-trihydroxybenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Arnold, Michelle E. published the artcileMicrophase-Separated Block Copolymers Comprising Low Surface Energy Fluorinated Blocks and Hydrophilic Blocks: Synthesis and Characterization, Category: esters-buliding-blocks, the publication is Macromolecules (2002), 35(9), 3697-3707, database is CAplus.

The synthesis and characterization of diblock and triblock copolymers produced by a two-component iniferter system is reported. These materials, designed for possible water treatment applications, consist of a hydrophilic poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) block and a very low surface energy poly(1,1′-dihydroperfluorooctyl methacrylate) (PFOMA) or poly(1,1,2,2-tetrahydroperfluorooctyl acrylate) (PTAN) block. Angle-dependent X-ray spectroscopy results and water contact angle measurements indicate that the surfaces of PDMAEMA-b-PFOMA diblock copolymers consist primarily of PFOMA. Transmission electron microscopy reveals that the block copolymers are microphase-separated, exhibiting either cylindrical or layered morphologies that do not change appreciably upon exposure to water. Both water uptake and water flux increase with increasing PDMAEMA content.

Macromolecules published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kinjo, Mieko published the artcileSex pheromone of the sugarcane shoot borer, Tetramoera schistaceana Snellen (Lepidoptera:Tortricidae:Olethreutinae). Isolation and identification, COA of Formula: C14H26O2, the publication is Nippon Oyo Dobutsu Konchu Gakkaishi (1996), 40(3), 191-197, database is CAplus.

The structure of the sex pheromone of the most important sugarcane pest, sugarcane shoot borer, T. schistaceana was determined to establish an integrated method of controlling this pest. The sex pheromone was extracted from the abdominal tips of virgin females. Using laboratory bioassay in a small flight tunnel, 2 active components of the sex pheromone were isolated. The major and minor components were identified as (Z)-9-dodecenyl acetate and (E)-9,11-dodecadienyl acetate, resp. The major component alone had no attractivity but a mixture of the 2 components showed strong activity in sugarcane fields. The sex pheromone of T. schistaceana was determined to be a 100:1 mixture of (Z)-9-dodecenyl acetate and (E)-9,11-dodecadienyl acetate. The synergist increasing the attractivity of the sex pheromone was (E)-7,9-decadienyl acetate. The best formulation for the sex attractant was a mixture of the 2 pheromone components and the synergist at a ratio of 1000:10:1.

Nippon Oyo Dobutsu Konchu Gakkaishi published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C14H26O2, COA of Formula: C14H26O2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Asano, Akiko published the artcileEffect of the powerful plasticity of the tert-butyl side chain on the conformational equilibrium of ascidiacyclamides, Synthetic Route of 106391-88-2, the publication is Journal of Peptide Science (2021), 27(12), e3363, database is CAplus and MEDLINE.

Ascidiacyclamide [cyclo(-Ile1,5-oxazoline2,6-D-Val3,7-thiazole4,8-)2] is a cytotoxic cyclic peptide from ascidian. Through structural analyses using monosubstituted analogs (Xaa1: Ala, 2-aminobutyric acid, Val, cyclohexylglycine, and phenylglycine), we previously demonstrated the conformational equilibrium between its square and folded forms. As the bulkiness of the Xaa1 residue side chain was reduced, spontaneous folding was promoted, and the cytotoxicity decreased accordingly. In the present study, five disubstituted analogs in which a tert-leucine residue (Tle) was incorporated at the 5-position of the abovementioned monosubstituted analogs were synthesized, after which their structures were analyzed using X-ray diffraction, CD (CD) spectral measurements, and 1H NMR-based quant. anal. The side chains of the Tle and Ile residues are structural isomers of one another, and the Tle residue bearing the tert-Bu group can be expected to play a role as a building block. In fact, peptides incorporating Tle5 exhibited much less spontaneous folding than their Ile5 counterparts in both crystal and solution Increases in enthalpy and entropy due to the tert-Bu group during the folding process resulted in increased conformational free energy (ΔG°). The powerful plasticity of the tert-Bu group would stabilize the square form relating with cytotoxicity.

Journal of Peptide Science published new progress about 106391-88-2. 106391-88-2 belongs to esters-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Amide,Aldehyde, name is (R)-tert-Butyl (3-methyl-1-oxobutan-2-yl)carbamate, and the molecular formula is C10H19NO3, Synthetic Route of 106391-88-2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics