Acid-promoted rearrangement of 2-aryl-2,3-epoxy acylates: construction of chiral benzylic quaternary carbon centers
作者:Yasuyuki Kita、Akihiro Furukawa、Junko Futamura、Kazuhiro Higuchi、Koichiro Ueda、Hiromichi Fujioka
DOI:10.1016/s0040-4039(00)00092-7
日期:2000.3
The reactions of 2-aryl-2,3-epoxy acylates with BF3. Et2O were examined in detail. Trans-2-aryl-2,3-epoxy acylates afforded the rearranged products in good yields via the C2-carbocation intermediates. The reaction was used for constructing the optically active benzylic quaternary carbon center. (C) 2000 Elsevier Science Ltd. All rights reserved.