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.
A series of original 4-aryl-substituted 2-trichloromethylquinazoline derivatives was synthesized using a microwave-assisted Suzuki-Miyaura cross-coupling approach. Antiplasmodial activity was evaluated on both chloroquino-resistant and -sensitive Plasmodium falciparum strains, and the selectivity indexes for THP1 and HepG2 human cells were also calculated, revealing their antiplasmodial potential. (C) 2007 Elsevier Ltd. All rights reserved.
BERGMAN J.; BRYNOLF A.; ELMAN B.; VUORINEN E., TETRAHEDRON, 42,(1986) N 13, 3697-3706