Decarboxylation in the synthesis of 4-alkyl-, 4-alkenyl- and 4-acylpyrimidines
作者:Gunnar Herstad、Tore Benneche
DOI:10.1002/jhet.5570400204
日期:2003.3
Decarboxylation of allylic esters of 4-carboxypyrimidines in toluene at 111 °C in the presence of a Pd(0) catalyst, gives a mixture of a 4-alkenylpyrimidine and a pyrimidine unsubstituted in the 4-position. If the decarboxylation is carried out in the presence of benzaldehyde, then benzaldehyde is added to the 4-position. Decarboxylation of 4-carboxypyrimidines in the presence of different electrophiles