Literature DB >> 12240438

Powerful Claisen condensation and Claisen-aldol tandem reaction of alpha,alpha-dialkylated esters promoted by ZrCl4-iPr2NEt.

Y Tanabe1, R Hamasaki, S Funakoshi.   

Abstract

Powerful Claisen ester condensations of alpha,alpha-dialkylated esters mediated by ZrCl4-iPr2NEt were performed to give the corresponding thermodynamically unfavorable alpha,alpha-dialkylated beta-ketoesters, and Claisen-aldol tandem reactions between an intermediary Zr-enolate of a alpha,alpha-dialkylated beta-ketoester and aldehydes also proceeded.

Entities:  

Year:  2001        PMID： 12240438

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  2 in total

1.  Silyl glyoxylates. Conception and realization of flexible conjunctive reagents for multicomponent coupling.

Authors:  Gregory R Boyce; Stephen N Greszler; Jeffrey S Johnson; Xin Linghu; Justin T Malinowski; David A Nicewicz; Andrew D Satterfield; Daniel C Schmitt; Kimberly M Steward
Journal:  J Org Chem       Date:  2012-03-23       Impact factor: 4.354

2.  Remote stereoinduction in the acylation of fully substituted enolates: tandem Reformatsky/quaternary Claisen condensations of silyl glyoxylates and β-lactones.

Authors:  Stephen N Greszler; Justin T Malinowski; Jeffrey S Johnson
Journal:  J Am Chem Soc       Date:  2010-11-18       Impact factor: 15.419
  2 in total

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