A short and simple synthesis of (+/-)-alpha-cuparenone from 4-methyl-acetophenone via acid catalyzed decomposition of a beta,gamma-unsaturated-alpha-diazoketone is described. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
A short and simple synthesis of (+/-)-alpha-cuparenone from 4-methyl-acetophenone via acid catalyzed decomposition of a beta,gamma-unsaturated-alpha-diazoketone is described. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
Tandem Blaise/retro-Blaise Reaction for the Nitrile-Mediated Regioselective Intermolecular Addition of Unstabilized Zinc Ester Enolates (Reformatsky Reagents) to 1-Alkynes and 1,3-Enynes
作者:Ju Hyun Kim、Yu Sung Chun、Sang-gi Lee
DOI:10.1021/jo402015n
日期:2013.11.15
of a nitrile as a mediator to achieve the regioselective intermolecular addition of unstabilized zinc ester enolates (Reformatskyreagents) to 1-alkynes and 1,3-enynes. This reaction is made possible by a reversible addition of enolates to a nitrile (Blaise reaction), generating a zinc aza-enolate that, unlike zinc ester enolates, can add intermolecularly to 1-alkynes and 1,3-enynes. Subsequent removal
作者:Subhash P. Chavan、Sachindra S. Patil、T. Ravindranathan
DOI:10.1016/s0040-4020(99)00826-1
日期:1999.11
A short and simple synthesis of (+/-)-alpha-cuparenone from 4-methyl-acetophenone via acid catalyzed decomposition of a beta,gamma-unsaturated-alpha-diazoketone is described. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.