Conformationally restricted 4-dimethylaminopyridine (DMAP) analogs: synthesis and evaluation of catalytic effectiveness
作者:Satwinder Singh、Goutam Das、Om V. Singh、Hyunsoo Han
DOI:10.1016/j.tetlet.2007.01.066
日期:2007.3
The syntheses of a series of conformationallyrestricted 4-dimethylaminopyridine (DMAP) analogs 1–3 are described. Evaluations of catalyst effectiveness demonstrated that 1 was the best catalyst for the acetylation reaction of a tertiary alcohol, while 2 and 3 were roughly comparable to DMAP. The order of effectiveness of these catalysts roughly parallels their acetylation enthalpies estimated from