tetrazoles;
palladium and compounds;
biaryls;
coupling reactions;
D O I:
10.1016/S0040-4039(00)00268-9
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
2-Benzyloxymethyl-5-(tributylstannyl)tetrazole (2) is a useful reagent for the conversion of aryl- and heteroarylhalides (bromides and iodides) to 5-aryl- and 5-heteroaryl-1H-tetrazoles. The conversion entails a copper(I) iodide co-catalyzed Stille palladium-catalyzed cross-coupling reaction and a N-benzyloxymethyl deprotection step. Coupling was possible with electron neutral and electron poor substrates in yields ranging from 35-93%. (C) 2000 Elsevier Science Ltd. All rights reserved.