Synthesis of .alpha.-azido and .alpha.-amino amides from N-[(methylsulfonyl)oxy]amides
摘要:
Effective new syntheses of 2-azido amides and 2-amino amides from N-(mesyloxy) amides 1 have been developed. 2-Azido amides are produced by treating 1 with sodium azide in the presence of 15-crown-5. 2-Amino amides result from the reaction of 1 with various amines. Regiochemical control in the preparation of 2-amino amides is possible by modulating the amine nucleophilicity by steric bulk.
Synthesis of .alpha.-azido and .alpha.-amino amides from N-[(methylsulfonyl)oxy]amides
作者:Robert V. Hoffman、Naresh K. Nayyar、Wenting Chen
DOI:10.1021/jo00061a004
日期:1993.4
Effective new syntheses of 2-azido amides and 2-amino amides from N-(mesyloxy) amides 1 have been developed. 2-Azido amides are produced by treating 1 with sodium azide in the presence of 15-crown-5. 2-Amino amides result from the reaction of 1 with various amines. Regiochemical control in the preparation of 2-amino amides is possible by modulating the amine nucleophilicity by steric bulk.