Asymmetric synthesis of 6-formyl-1-alkoxycarbonylbicyclo[3.1.0]hex-2-ene-2-carboxylic acids by a novel buffer-mediated rearrangement
摘要:
Asymmetric synthesis of 6-formyl-1-alkoxycarbonylbicyclo[3.1.0]hex-2-ene-2-carboxylic acids has been achieved and the absolute configurations of the products of a novel buffer-mediated rearrangement have been established. (C) 2001 Elsevier Science Ltd. All rights reserved.
Revisit to meinwald rearrangement of electron-deficient systems
作者:Satomi Niwayama、Susumu Kobayashi、Masaji Ohno
DOI:10.1016/s0040-4039(00)82334-5
日期:1988.1
The monoester 6, generated in situ by the enzymatic hydrolysis of the symmetric diester 5a with pig liver esterase, undergoes extremely facile Meinwald-type rearrangement to afford the bicyclo[3.1.0]hex-2-ene derivative 8a in quantitative yield.
Asymmetric monohydrolysis of a series of norbornanederivatives by a thermophilic esterase/lipase library was examined. Three esterases/lipases showed high enantioselectivities toward dialkyl bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylates with high chemical yields.
Asymmetric synthesis of 6-formyl-1-alkoxycarbonylbicyclo[3.1.0]hex-2-ene-2-carboxylic acids by a novel buffer-mediated rearrangement
作者:Satomi Niwayama、Jianxiu Liu
DOI:10.1016/s0957-4166(01)00430-x
日期:2001.10
Asymmetric synthesis of 6-formyl-1-alkoxycarbonylbicyclo[3.1.0]hex-2-ene-2-carboxylic acids has been achieved and the absolute configurations of the products of a novel buffer-mediated rearrangement have been established. (C) 2001 Elsevier Science Ltd. All rights reserved.