3978-16-3Relevant academic research and scientific papers
Borinic Acid Catalysed Reduction of Tertiary Amides with Hydrosilanes: A Mild and Chemoselective Synthesis of Amines
Chardon, Aurélien,Mohy El Dine, Tharwat,Legay, Rémi,De Paolis, Micha?l,Rouden, Jacques,Blanchet, Jér?me
supporting information, p. 2005 - 2009 (2017/02/19)
A reduction of various aryl, alkyl, and α,β-unsaturated amides with phenylsilane, catalysed by a borinic acid, is reported. The unprecedented reaction was carried out under very mild conditions and led to useful amines. Furthermore, the reaction tolerates a variety of functional groups. Initial investigations implicated that an intermediate diarylhydroborane is involved in the reaction mechanism.
Synthesis of free NH 2-(aminomethyl)indoles through copper-catalyzed reaction of 3-(ortho-trifluoroacetamidophenyl)-1-propargylic alcohols with amines and palladium/copper- cocatalyzed domino three-component Sonogashira cross-coupling/cyclization/substitu
Cacchi, Sandro,Fabrizi, Giancarlo,Iazzetti, Antonia,Molinaro, Carmela,Verdiglione, Rosanna,Goggiamani, Antonella
supporting information, p. 1053 - 1059 (2015/03/30)
Free NH 2-(aminomethyl)indoles have been prepared via copper-catalyzed cyclization of 3-(ortho-trifluoroacetamidophenyl)-1-propargylic alcohols in the presence of primary or secondary amines. The synthesis has been developed into a simple and very efficie
Palladium-catalyzed synthesis of 2-(aminomethyl)indoles from 3-(o -trifluoroacetamidoaryl)-1-propargylic alcohols and amines
Cacchi, Sandro,Fabrizi, Giancarlo,Goggiamani, Antonella,Molinaro, Carmela,Verdiglione, Rosanna
, p. 401 - 407 (2014/01/17)
A novel palladium-catalyzed approach to 2-(aminomethyl)indoles from 3-(o-trifluoroacetamidoaryl)-1-propargylic alcohols and amines has been developed.
3-(o-Trifluoroacetamidoaryl)-1-propargylic esters: common intermediates for the palladium-catalyzed synthesis of 2-aminomethyl-, 2-vinylic, and 2-alkylindoles
Ambrogio, Ilaria,Cacchi, Sandro,Fabrizi, Giancarlo,Prastaro, Alessandro
scheme or table, p. 8916 - 8929 (2009/12/07)
3-(o-Trifluoroacetamidoaryl)-1-propargylic esters have been used as common synthetic intermediates for the preparation of a variety of 3-unsubstituted 2-substituted indoles. Treating ethyl 3-(o-trifluoroacetamidoaryl)-1-propargylic carbonates unsubstituted or containing an aryl substituent at the propargylic carbon with piperazines and Pd(PPh3)4 in THF at 80 °C affords 2-(piperazin-1-ylmethyl)indoles in excellent yields. Good to excellent yields of 2-aminomethylindoles are also obtained with other secondary amines. Ethyl 3-(o-trifluoroacetamidoaryl)-1-propargylic carbonates bearing an alkyl substituent at the propargylic carbon and ethyl 3-(o-trifluoroacetamidoaryl)-1-propargylic acetates disubstituted at the propargylic carbon give 2-vinylic indoles with the Pd(OAc)2/PPh3 combination and Et3N in THF at 80 °C. Formation of 2-vinylic indoles is quite stereoselective, generating trans vinylic derivatives, at least with the substrates that we have investigated. In the presence of formic acid, Et3N, and Pd(PPh3)4 in MeCN at 80 °C, ethyl 3-(o-trifluoroacetamidoaryl)-1-propargylic carbonates afford 2-alkylindoles in good to excellent yields.
Palladium-catalyzed synthesis of 2-(aminomethyl)indoles from ethyl 3-(o-trifluoroacetamidophenyl)-1-propargyl carbonate
Ambrogio, Ilaria,Cacchi, Sandro,Fabrizi, Giancarlo
, p. 2083 - 2086 (2007/10/03)
The palladium-catalyzed reaction of ethyl 3-(o-trifluoroacetamidophenyl)-1- propargyl carbonate with piperazines in the presence of Pd(PPh3) 4 in THF at 80 °C affords 2-(piperazin-1-ylmethyl)indoles in excellent yields. Good to excellent yields are also obtained with other secondary amines.
