Daucus carota Mediated-Reduction of Cyclic 3-Oxo-amines
摘要:
Carrots (Daucus carota) were used to reduce cyclic amino-ketones in high yields and enantiomeric excesses. This cheap, eco-compatible, and efficient reducing reagent allows the easy access to precursors of biologically active products.
investigated by the use of the enzymatic hydrolysis of its acetate (2a). Among several hydrolases examined here, lipase PS from Pseudomonas cepaciagave the best result: In a mixed solvent (1 : 1 v/v) of dioxane and a phosphate buffer (pH 7), the hydrolysis took place smoothly with a high enantioselectivity (E > 3000). Several 3-alkanoyl derivatives of 1 were subjected to the lipase PS-catalyzed hydrolysis
作者:Nathalie Dubois、Daniel Glynn、Thomas McInally、Barrie Rhodes、Simon Woodward、Derek J. Irvine、Chris Dodds
DOI:10.1016/j.tet.2013.08.062
日期:2013.11
acids with primary and secondary amines under a variety of conditions (reflux, sealed tube, microwave) has been compared for a significant range of coupling partners of relevance to the preparation of amides of interest in pharmaceutical chemistry. Commercial microwave reactors promote the fastest couplings and allow the use of significantly sterically hinderedamines (primary and secondary) and carboxylic
Microbiological transformation of nitrogen-containing heterocyclic compounds. 3. Microbiological synthesis of hydroxy derivatives of 1-benzoylpiperidine and 1-benzoylpyrrolidine
作者:I. A. Parshikov、L. V. Modyanova、E. V. Dovgilivich、P. B. Terent'ev、L. I. Vorob'eva、G. V. Grishina