Hydride-Donor Abilities of 1,4-Dihydropyridines: A Comparison with π Nucleophiles and Borohydride Anions
作者:Dorothea Richter、Herbert Mayr
DOI:10.1002/anie.200804263
日期:2009.3.2
How are dihydropyridines like indoles? Both groups of compounds have similar nucleophilicity parameters N and are therefore suitable substrates for iminium‐catalyzed reactions of α,β‐unsaturated aldehydes. The N parameters of 1,4‐dihydropyridines were derived from the rates of hydride transfer reactions to benzhydrylium ions (see scheme).
二氢吡啶像吲哚怎么样?两组化合物的亲核参数N相似,因此它们是亚胺催化的α,β-不饱和醛的亚胺催化反应的合适底物。1,4-二氢吡啶的N参数是由氢化物转移至苯甲酸铵离子的速率得出的(请参阅方案)。