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.
Generalization of the Benzotriazole-Mediated Introduction of N-Substituents into Amides
摘要:
N-(Benzotriazol-1-ylmethyl) amides 2, easily available by condensation of BtCH(2)OH with amides, are used for the preparation of a variety of N-substituted amides such as the homoallyl, 1,3-butadienyl, and 2,2-diphenylcyclopropyl derivatives by displacement of the benzotriazole group under different conditions.