作者:Greg Hughes、Paul O'Shea、Julie Goll、Danny Gauvreau、Jennifer Steele
DOI:10.1016/j.tet.2008.12.064
日期:2009.4
α-trifluoromethyl benzyl moieties by nucleophilic displacement of enantiomerically enriched α-trifluoromethyl benzylic triflates are presented. The effects of substrate electronics, solvent polarity, temperature, and base are studied by measuring the diastereomeric or enantiomeric excesses of the displacement products formed by coupling a variety of α-trifluoromethyl benzylic triflates with a range of
提出了通过对映体富集的α-三氟甲基苄基三氟甲磺酸酯的亲核置换引入手性α-三氟甲基苄基部分的有效方案。通过测量置换产物的非对映异构体或对映体过量,研究了底物电子学,溶剂极性,温度和碱的影响,这些置换产物是通过将各种α-三氟甲基苄基三氟甲磺酸酯与一系列亲核试剂(包括胺,羧酸盐,硫醇和丙二酸酯。还报道了初步研究以阐明亲核取代反应中苄基中心立体化学完整性的丧失所涉及的机制。