Preparation of β-Amido Ketones and Aldehydes via Amidoalkylation of Enamines, Enol Silyl Ethers, and Vinyl Ethers
摘要:
Novel syntheses of beta-amidoalkyl ketones and aldehydes via amidoalkylations of enamines, silyl enol ethers, and vinyl. ethers with N-(1-benzotriazol-1-ylalkyl)amides are described.
The conversion of secondary into tertiary amides using benzotriazole methodology
作者:Alan R. Katritzky、Guowei Yao、Xiangfu Lan、Xiaohong Zhao
DOI:10.1021/jo00060a025
日期:1993.4
N-Alkyl-N-[1-(benzotriazol-1-yl)alkyl]amides, easily prepared from benzotriazole, an aldehyde, and a secondary amide, react readily with organozinc reagents to give tertiary amides in moderate to good yields. They are also reduced by LiAlH4 to afford tertiary amines.