Process for the preparation of an unsaturated macrocyclic ketone
申请人:FIRMENICH SA
公开号:EP0065319A1
公开(公告)日:1982-11-24
his invention relates to a process for the preparation of an unsaturated macrocyclic ketone of formula
which comprises reacting in the presence of a basic reagent a dialdehyde of formula
with a diphosphonate of formula
wherein each of symbols R represents an alkyl radical.
本发明涉及一种制备式不饱和大环酮的工艺,该工艺包括在碱性试剂存在下,使式二醛与式二膦酸盐反应,其中每个符号 R 代表一个烷基。
Difunctional and heterocyclic products from the ozonolysis of conjugated C5-C8-cyclodienes
作者:Karl Griesbaum、In Chan Jung、Henri Mertens
DOI:10.1021/jo00311a021
日期:1990.11
Concise Catalytic Asymmetric Total Synthesis of Biologically Active Tropane Alkaloids
the total asymmetric synthesis of valuable tropanealkaloids by catalytic stereoselective transformations is disclosed. The power of this approach is exemplified by the concise catalytic enantioselective total syntheses of (+)‐methylecgonine, (−)‐cocaine and (+)‐cocaine as well as the first catalytic asymmetric total syntheses of a cocaine C‐1 derivative and (+)‐ferruginine starting from 5‐oxo‐protected‐α