Synthesis

Conjugate Addition of Dialkylaluminum Chlorides to Alkylidenemalonic Acid Derivatives

S Maas, A Stamm, H Kunz

Index: Maas, Steffen; Stamm, Armin; Kunz, Horst Synthesis, 1999 , # 10 p. 1792 - 1798

Full Text: HTML

Citation Number: 1

Abstract

Abstract: Complete regioselectivity is achieved in conjugate addition reactions of dialkylaluminum chlorides with alkylidenemalonic esters, alkylidenecyanoacetates, and alkylidenemalonodinitrile to give b-branched carboxylic acid derivatives. Sterically demanding products containing quaternary carbon atoms are obtained in good yields. In the case of diethylaluminum chloride, accompanying reductions of the substrates can be ...