Enzymatic kinetic resolution of sec-alcohols using an ionic liquid anhydride as acylating agent
作者:Raquel Teixeira、Nuno M.T. Lourenço
DOI:10.1016/j.tetasy.2014.05.001
日期:2014.6
A task-specific ionic liquid bearing an anhydride moiety was synthesized for the first time in good yield (83%) through a carbodiimide-mediated coupling reaction. The enantiomeric separation of a series of sec-alcohols was performed via enzymatic kinetic resolution, employing an ionic anhydride as acylatingagent and Candidaantarctica Lipase B as a biocatalyst. A fast and efficient recovery of both
Direct Conversion of Trimethylsilyl and Tetrahydropyranyl Ethers into Esters with Acid Chlorides in the Presence of Montmorillonite K-10
作者:Barahman Movassagh、Kobra Atrak
DOI:10.1081/scc-120026313
日期:2003.12
Abstract A simple method is described for an efficient conversion of variety of trimethylsilyl (TMS) and tetrahydropyranyl (THP) ethers into their corresponding esters with acid chlorides in the presence of montmorillonite K-10.
作者:Andrew B. Kyte、Richard Jones-Parry、David Whittaker
DOI:10.1039/c39820000074
日期:——
Acetylnitrite has been prepared, and shown to be a usefulreagent for the study of the mechanism of deamination of primary amines.
已制备了亚硝酸乙酰酯,并显示出它是用于研究伯胺脱氨基机理的有用试剂。
Catalytic Esterification of Alcohols, Carboxylic Acids and Transesterification Reactions with Cerium(IV) Triflate
作者:Nasser Iranpoor、Marzieh Shekarriz
DOI:10.1246/bcsj.72.455
日期:1999.3
reactions of alcohols with acetic, chloroacetic, trifluoroacetic, propionic, stearic, and benzoic acids were catalyzed with Ce(OTf)4 in a solvent or under solvent-free conditions with high yields. The formylation and acetylation of primary and secondary alcohols were also easily achieved in ethyl formate and ethyl acetate. A high retention of the configuration was observed in the acetylation and formylation
Synergistically-effective composition of zinc ricinoleate and one or more substituted monocyclic organic compounds and use thereof for preventing and/or suppressing malodors
申请人:Parekh P. Prabodh
公开号:US20050106192A1
公开(公告)日:2005-05-19
Described are synergistically-effective compositions consisting essentially of zinc ricinoleate or solutions thereof and one or more of the substituted monocyclic organic compounds: 1-cyclohexylethan-1-yl butyrate; 1-cyclohexylethan-1-yl acetate; 1-cyclohexylethan-1-ol; 1-(4′-methylethyl)cyclohexylethan-1-yl propionate; and/or 2′-hydroxy-1′-ethyl(2-phenoxy)acetate and uses of same and compositions containing same for preventing and/or suppressing malodors. Also described for the purpose of application to an inanimate laminar substantially solid surface are malodor-suppressing composition-containing stick articles containing an ester-terminated polyamide or an amide-terminated polyamide structural support polymer in combination with the aforementioned synergistically-effective zinc ricinoleate-substituted monocyclic organic compound composition. Also described is a package for conveniently handling the aforementioned stick article.