The Baylis–Hillman chemistry in aqueous media: a convenient synthesis of 2-methylenealkanoates and alkanenitriles
摘要:
A convenient, general and efficient synthesis of 2-methylenealkanoates and alkanenitriles is accomplished via the regioselective nucleophilic (S(N)2') addition of hydride ion from NaBH4 to (2Z)-2-(bromomethyl)alk-2-enoates and 2-(bromomethyl)alk-2-enenitriles respectively in the presence of DABCO in environment friendly aqueous media. Synthesis of two hypoglycemic agents is also described. (C) 2001 Elsevier Science Ltd. All rights reserved.
New Efficient Synthesis of 3-Substituted 2-Cyano Allylic Alcohols
作者:Hbaieb、Ben Ayed、Amri
DOI:10.1080/00397919708004158
日期:1997.8
An efficient tandem ''bromination-formylation-hydrolysis'' mediated conversion of available 2-(1-hydroxy alkyl) acrylonitriles 1 to their corresponding 3-substituted 2-cyano allylic alcohols 2 is described.