Alberola, Angel; Andres, Celia; Ortega, Alfonso Gonzalez, Synthetic Communications, 1987, vol. 17, # 11, p. 1309 - 1314
作者:Alberola, Angel、Andres, Celia、Ortega, Alfonso Gonzalez、Pedrosa, Rafael、Vicente, Martina
DOI:——
日期:——
The Reaction of b-Aminoenones with a-Amino Derivatives. Synthesis of 2-Functionalized Pyrroles
作者:Angel Alberola、Jos� M. Andr市、Alfonso Gonz�ez、Rafael Pedrosa、Martina Vicente
DOI:10.3987/com-90-5332
日期:——
Synthesis of highly functionalized 2,2'-bipyridines by cyclocondensation of β-ketoenamides – scope and limitations
作者:Paul Hommes、Hans-Ulrich Reissig
DOI:10.3762/bjoc.12.112
日期:——
The scope of a flexible route to unsymmetrically functionalized bipyridines is described. Starting from 1,3-diketones 1a-e, the corresponding beta-ketoenamines 2a-e were converted into different beta-ketoenamides 3a-g by N-acylation with 2-pyridinecarboxylic acid derivatives. These beta-ketoenamides were treated with a mixture of TMSOTf and Hunig's base to promote the cyclocondensation to 4-hydroxypyridine