CuBr2-mediated direct aqueous bromolactonization of 2,3-allenoates. An efficient access to β-bromobutenolides
作者:Shengming Ma、Shulin Wu
DOI:10.1016/s0040-4039(01)00634-7
日期:2001.6
An efficient procedure for the synthesis of beta -bromobutenolides was developed. 2,3-Allenoates with different substitution patterns react with CuBr2 in aqueous ethanol at 80-85 degreesC to afford the corresponding beta -bromobutenolides in moderate to excellent yields (up to 97%). (C) 2001 Elsevier Science Ltd. All rights reserved.
CAINE D.; SAMUELS W. D., TETRAHEDRON LETT. 1980, 21, NO 42, 4057-4060
作者:CAINE D.、 SAMUELS W. D.
DOI:——
日期:——
GILL, G. B.;IDRIS, MUHAMMAD, SUM, HJ., TETRAHEDRON LETT., 1985, 26, N 39, 4811-4814