Chiral Pd-catalyzed enantioselective Friedel–Crafts reaction of indoles with γ,δ-unsaturated β-keto phosphonates
摘要:
The catalytic enantioselective Friedel-Crafts alkylation reaction promoted by chiral palladium complexes is described. The treatment of indoles with gamma,delta-unsaturated beta-keto phosphonates under the mild reaction conditions afforded the corresponding Friedel-Crafts alkylation adducts with excellent enantioselectivities (up to 99% ee). (C) 2011 Elsevier Ltd. All rights reserved.
A new, practical, synthesis of β-ketophosphonates relying on the conversion of the organolithium reagentfrom a dialkyl methylphosphonate into the correspondingorganocopperreagent, and its reaction with acylchlorides is described. The structure of the intermediate organocopperreagents is discussed.
A Direct Conversion of Aldehydes into 2-Oxoalkanephosphonates via the Diethyl α-Lithiochloromethanephosphonate Anion
作者:Philippe SAVIGNAC、Philippe COUTROT
DOI:10.1055/s-1978-24854
日期:——
A new synthesis of β-keto phosphonate from aryl epoxysulfones and dialkyl hydrogen phosphite
作者:Joo Koh Young、Yung Oh Dong
DOI:10.1016/s0040-4039(00)60367-2
日期:1993.3
Chiral Pd-catalyzed enantioselective Friedel–Crafts reaction of indoles with γ,δ-unsaturated β-keto phosphonates
作者:Young Ku Kang、Bo Kyung Kwon、Joo Yang Mang、Dae Young Kim
DOI:10.1016/j.tetlet.2011.04.084
日期:2011.6
The catalytic enantioselective Friedel-Crafts alkylation reaction promoted by chiral palladium complexes is described. The treatment of indoles with gamma,delta-unsaturated beta-keto phosphonates under the mild reaction conditions afforded the corresponding Friedel-Crafts alkylation adducts with excellent enantioselectivities (up to 99% ee). (C) 2011 Elsevier Ltd. All rights reserved.
Novel Cobalt(0)- or Magnesium-Mediated Approaches to β-Ketophosphonates
作者:Fulvia Orsini、Emanuela Di Teodoro、Marinella Ferrari
DOI:10.1055/s-2002-33653
日期:——
Two novel approaches to β-ketophosphonates, based on cobalt(0)- or magnesium-mediated reactions of α-halophosphonates with esters are described.