6-Magnesiated Purines: Preparation and Reaction with Aldehydes
作者:Tomáš Tobrman、Dalimil Dvořák
DOI:10.1021/ol0355027
日期:2003.11.1
[reaction: see text] Halogen-metalexchange reaction of 9-benzyl-6-iodopurine with iPrMgCl in toluene at -80 degrees C proceeds almost quantitatively. Such a purine-derived Grignardreagent reacts selectively with aldehydes in toluene, giving the corresponding alcohols in 25-62% yield, while other functional groups such as ketones, esters, and nitriles do not react under these conditions. The reaction