反应详情

Beginning with 4.0 gm (17.3 mMol) 5-chloro-7-bromobenzofuran and 3.86 gm (19.0 mMol) 1-benzyl-3-methyl-4-oxo-piperidine, 5.6 gm (92%) of the desired compound were recovered essentially as described in EXAMPLE 3.