characterized. These salts in combination with [RhCl(COD)]2 provided active catalysts for the addition of phenylboronic acid to aldehydes under mild conditions. The in situ prepared three-component system [RhCl(COD)]2/imidazolinium salts (2,4) and KOBut catalyse the addition of phenylboronic acid to sterically hindered aldehydes affording the corresponding arylated secondary alcohols in good yields. ©
新的 1,3-二烷基全氢
苯并咪唑啉鎓和 1,3-二烷基
咪唑啉鎓盐 (2,4) 作为 NHC 前体已被合成和表征。这些盐与 [RhCl(COD)] 2 结合为苯
硼酸在温和条件下加成到醛中提供了活性催化剂。原位制备的三组分体系 [RhCl(COD)]2/
咪唑啉盐 (2,4) 和 KOBut 催化苯基
硼酸与位阻醛的加成,以良好的收率提供相应的芳基化仲醇。© 2005 Wiley Periodicals, Inc. 杂原子
化学 16:461–465, 2005; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20132