Efficient and Complementary Methods Offering Access to Synthetically Valuable 1,2-Dibromobenzenes
作者:Vincent Diemer、Frédéric R. Leroux、Françoise Colobert
DOI:10.1002/ejoc.201001217
日期:2011.1
in particular, reactions based on the intermediate formation of benzynes. This report describes short sequences for the synthesis of various derivatives based on regioselective bromination, ortho-metalation, and halogen/metal permutations. 1,2-Dibromo-3-iodobenzene (2f), 1,2-dibromo-4-iodobenzene (4c), and 2,3-di-bromo-1,4-diiodobenzene (5e) act as intermediates in these syntheses.
1,2-二溴苯是各种有机转化的非常有价值的前体,特别是基于苄基中间体形成的反应。本报告描述了基于区域选择性溴化、邻位金属化和卤素/金属置换合成各种衍生物的短序列。1,2-二溴-3-碘苯 (2f)、1,2-二溴-4-碘苯 (4c) 和 2,3-二溴-1,4-二碘苯 (5e) 在这些合成中用作中间体。