Nucleophilic cleavage of lactones and esters with zinc selenolates prepared from diselenides in the presence of Zn/AlCl3
作者:Mohammad Nazari、Barahman Movassagh
DOI:10.1016/j.tetlet.2008.11.036
日期:2009.1
The utility of zinc selenolates for effecting nucleophilic cleavage of simple lactones and esters has been investigated. When zinc selenolate generated via Zn/AlCl3-promoted cleavage of diselenides was reacted with simple lactones and esters, efficient nucleophilic alkyl–oxygenbondcleavage proceeded generating the corresponding carboxylic acids in moderate to excellent yields.
Indium(I) Bromide-Mediated Regioselective Markovnikov Hydroselenation, Diselenation and Hydration of Terminal Alkynes with Diphenyldiselenide in Aqueous Media
作者:Clovis Peppe、Ernesto Schulz Lang、Gabriela Nanci Ledesma、Liérson Borges de Castro、Olga Soares do Rego Barros、Paola de Azevedo Mello
DOI:10.1055/s-2005-921931
日期:——
The indium(III) selenolate obtained from indium(I) bromide and diphenyldiselenide promotes, alternatively, the Markovnikov hydroselenation, diselenation or hydration of terminal alkynes, depending on the experimental conditions.
Nucleophilic Ring Opening of Mono-Activated Cyclopropanes with Arylselenolates Generated from Diselenides in the Presence of a Zn/AlCl3 System
作者:Barahman Movassagh、Mohammad Nazari
DOI:10.1055/s-0029-1217372
日期:2009.7
efficient one-pot synthesis of γ-arylselenenyl ketones, acids, and nitriles is presented. The method uses Zn/AlCl 3 -promoted cleavage of diselenides and subsequent ring-opening of mono-activated cyclopropanes.
Indium(I) iodide-mediated chemio-, regio-, and stereoselective hydroselenation of 2-alkyn-1-ol derivatives
作者:Olga Soares do Rego Barros、Ernesto Shulz Lang、Carlos Alberto Fernandes de Oliveira、Clovis Peppe、Gilson Zeni
DOI:10.1016/s0040-4039(02)01904-4
日期:2002.10
Indium(I) iodide efficiently promotes the chemio-, regio-, and stereoselective hydroselenation of 2-alkyn-1-ol derivatives with diphenyl diselenide to produce the Markovnikov adducts with stereochemistry corresponding to an anti addition of the selenol constituents across the triple bond.