Heteropoly acid-catalyzed highly efficient alkylation of 1,3-dicarbonyl compounds with benzylic and propargylic alcohols
作者:J.S. Yadav、B.V. Subba Reddy、T. Pandurangam、K.V. Raghavendra Rao、K. Praneeth、G.G.K.S. Narayana Kumar、C. Madavi、A.C. Kunwar
DOI:10.1016/j.tetlet.2008.04.126
日期:2008.6
Various 1,3-dicarbonyl compounds reacted readily with benzylic and propargylic alcohols in the presence of 10 mol % of phosphomolybdic acid supported on silica gel (PMA/SiO2) under mild reaction conditions to produce 2-benzylic- and 2-propargylic-1,3-dicarbonyl compounds in excellent yields and with high selectivity.
在温和的反应条件下,在硅胶上载有10 mol%的磷钼酸(PMA / SiO 2)的情况下,各种1,3-二羰基化合物容易与苄醇和炔丙基醇反应生成2-苄基和2-炔丙基-1 ,3-二羰基化合物具有优异的收率和高选择性。