Chemoenzymatic synthesis of 2-substituted 2-fluoro-1,3-dioxygenated chiral building blocks
摘要:
A series of 2-substituted-2-fluoro-1,3-dioxygenated chiral building blocks are synthesized via a chemoenzymatic route using either (i) lipase catalyzed monohydrolysis of suitably functionalized malonic diesters, or (ii) lipase catalyzed monoacetylation of suitably functionalized 1,3-propanediols. (C) 1999 Elsevier Science Ltd. All rights reserved.
Chemoenzymatic synthesis of 2-substituted 2-fluoro-1,3-dioxygenated chiral building blocks
摘要:
A series of 2-substituted-2-fluoro-1,3-dioxygenated chiral building blocks are synthesized via a chemoenzymatic route using either (i) lipase catalyzed monohydrolysis of suitably functionalized malonic diesters, or (ii) lipase catalyzed monoacetylation of suitably functionalized 1,3-propanediols. (C) 1999 Elsevier Science Ltd. All rights reserved.
Palladium-Catalyzed Arylation of Malonates and Cyanoesters Using Sterically Hindered Trialkyl- and Ferrocenyldialkylphosphine Ligands
作者:Neil A. Beare、John F. Hartwig
DOI:10.1021/jo016226h
日期:2002.1.1
diethyl malonate, di-tert-butyl malonate, diethyl fluoromalonate, ethyl cyanoacetate, and ethyl phenylcyanoacetate. Although alkyl malonates and ethyl alkylcyanoacetates did not react with aryl halides using these catalysts, the same products were formed conveniently in one pot from diethylmalonate by cross-coupling of an aryl halide in the presence of excess base and subsequent alkylation.
Lipase mediated preparation of differently protected homochiral 2-aryl-2-fluoro-1,3-propanediols
作者:Giuseppe Guanti、Enrica Narisano、Renata Riva
DOI:10.1016/s0957-4166(98)00181-5
日期:1998.6
Lipase mediated asymmetric monohydrolysis of 2-aryl-2-fluoromalonic acid diesters or monoacetylation of 2-aryl-2-fluoro-1,3-propanediols affords chiral fluorinated polyfunctionalized C-3 synthons in excellent enantiomeric excess and acceptable chemical yields. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Chemoenzymatic synthesis of 2-substituted 2-fluoro-1,3-dioxygenated chiral building blocks
作者:Enrica Narisano、Renata Riva
DOI:10.1016/s0957-4166(99)00088-9
日期:1999.4
A series of 2-substituted-2-fluoro-1,3-dioxygenated chiral building blocks are synthesized via a chemoenzymatic route using either (i) lipase catalyzed monohydrolysis of suitably functionalized malonic diesters, or (ii) lipase catalyzed monoacetylation of suitably functionalized 1,3-propanediols. (C) 1999 Elsevier Science Ltd. All rights reserved.