First SNAr reaction using TDAE-initiated carbanions in quinazoline series
摘要:
We report herein the first example of a SNAr reaction using TDAE-initiated carbanions in quinazoline series. The o-nitrobenzyl carbanion, formed by the action of TDAE on o-nitrobenzyl chloride, reacts with 4-chloro-2-trihalomethylquinazolines 4 and 5 via a SNAr mechanism. This enabled a new series of 4-benzyl-2-trihaloquinazoline derivatives to be synthesized in good yields under mild reaction conditions offering promising prospects for pharmacomodulation. (C) 2011 Elsevier Ltd. All rights reserved.
We report herein the first example of a SNAr reaction using TDAE-initiated carbanions in quinazoline series. The o-nitrobenzyl carbanion, formed by the action of TDAE on o-nitrobenzyl chloride, reacts with 4-chloro-2-trihalomethylquinazolines 4 and 5 via a SNAr mechanism. This enabled a new series of 4-benzyl-2-trihaloquinazoline derivatives to be synthesized in good yields under mild reaction conditions offering promising prospects for pharmacomodulation. (C) 2011 Elsevier Ltd. All rights reserved.