Preparation of the Isomeric Azaindoline Family by Intramolecular Carbolithiation
作者:William F. Bailey、Paresh D. Salgaonkar、Jason D. Brubaker、Vijayata Sharma
DOI:10.1021/ol702862d
日期:2008.3.1
N-diallylamino)bromopyridine. Whereas cyclization proceeds as expected to give 1-allyl-3-methyl-4-azaindoline and 1-allyl-3-methyl-6-azaindoline following protonation of the 3-CH2Li group of the azaindoline, the isomeric 3-methyl-5-azaindoline and 3-methyl-7-azaindoline are generated as 3-methyl-N-allyl anions prior to quench with MeOH.