Preparation of 2-, 4-, 5-, and 6-aminonicotinic acid tert-butyl esters
作者:Stephen W. Wright
DOI:10.1002/jhet.799
日期:2012.3
Procedures are reported to prepare the tert‐butylesters of 2‐aminonicotinic acid, 4‐aminonicotinic acid, 5‐aminonicotinic acid, and 6‐aminonicotinic acid from 2‐chloronicotinic acid, 4‐chloronicotinic acid, 5‐bromonicotinic acid, and 6‐chloronicotinic acid, respectively, without need for purification of intermediates. J. Heterocyclic Chem., (2012).