General information. All manipulations were performed in a N2 filled drybox or using standard Schlenk techniques. Allyl benzene, methyl vinyl ketone, pchlorostyrene, methyl methacrylate, diethyl diallylmalonate (3), and 1,6-heptadien-4ol (6) were purchased from Aldrich and used without further purification. cis-4Cyclopentene-1,3-diol and (+)-citronellal were purchased from Fluka and used withou...

In this study, the methanolysis process of sunflower oil was investigated to get high methyl esters (biodiesel) content using sodium methoxide. To reach to the best process conditions, central composite design (CCD) through response surface methodology (RSM) was employed. The optimal conditions predicted were the reaction time of 60 min, an excess stoichiometric amount of alcohol to oil ratio o...

Amritotharanam Kashyam, a specific Ayurvedic drug, was the focus of current inquiry to evaluate its efficacy. For liver and digestive-related issues, this medication is suggested. This obtained from standard vendor in Chennai (India), GC-MS analysis carried out according procedure. A few critical biomolecules include benzoic acid, hexadecanoic 6,9-octadecadienoic 9-octadecenoic methyl ester (E)...

Aqueous emulsion copolymerization of methyl methacrylate (MMA) and 5,6-benzo-2-methylene-1,3-dioxepane (BMDO) leads to stable particles PMMA bearing in-chain ester units that can be cleaved under basic conditions.

background: gossypium arboreum is resistant to cotton leaf curl burewala virus and its cognate cotton leaf curl multan betasatellite (clcubuv and clcumb). however, the g. arboreum wax deficient mutant (gawm3) is susceptible to clcuv. therefore, epicuticular wax was characterized both quantitatively and qualitatively for its role as physical barrier against whitefly mediated viral transmission a...

The main fatty acids present in lipopolysaccharides from Bacteroides fragilis NCTC 9343 were identified as 13-methyl-tetradecanoic, D-3-hydroxypentadecanoic, D-3-hydroxyhexadecanoic, D-3-hydroxy-15-methyl-hexadecanoic, and D-3-hydroxyheptadecanoic acids. Of these, 13-methyl-tetradecanoic acid is exclusively ester bound, and 3-hydroxy-15-methyl-hexadecanoic acid is exclusively involved in amide ...

Indole 3-acetic acid (IAA) was analyzed in apple, orange, and prune tissue by GC-MS by monitoring the protonated molecular ion of its methyl ester at mass to charge ratio (m/z) 190 together with the major fragment ion at m/z 130 and the corresponding ions from the methyl esters of either [(2)H(4)]IAA (m/z 194, 134) or [(2)H(5)]IAA (m/z 195, 135). Abscisic acid (ABA) was analyzed by monitoring t...

Subtilisin BPN' hydrolysed N-acetyl-l-3-(2-naphthyl)-alanine methyl ester, N-acetyl-l-leucine methyl ester and N-acetyl-l-valine methyl ester, faster than alpha-chymotrypsin. Of eight ;locked' substrates tested, only methyl 5,6-benzindan-2-carboxylate was hydrolysed faster by subtilisin, whereas the other esters were better substrates for chymotrypsin. Compared with the values for chymotrypsin,...

Vegetable oil-based and potentially biodegradable polyesters were prepared from 9-hydroxynonanoic acid methyl ester. This paper describes ozonolysis of vegetable oils and the method for preparation of useful monomers and in particular 9-hydroxynonanoic acid methyl ester. Ozonolysis of soybean oil and castor oil in methanol and methylene chloride solution, followed by reduction with sodium boroh...

Abstract Little information is available on the relative efficacy of Group 4 herbicides for glyphosate-resistant (GR) horseweed management in soybean. Five field research experiments were conducted growers’ fields from 2020 to 2021 determine GR control with applied preplant (PP) alone and a mixture. There was minimal soybean injury (≤4%) evaluated. Dicamba, 2,4-D, or halauxifen-methyl PP contro...