Experimental and Theoretical Studies on the Nucleofugality Patterns in the Aminolysis and Phenolysis of <i>S</i>-Aryl <i>O</i>-Aryl Thiocarbonates
作者:Enrique A. Castro、Margarita Aliaga、Paola R. Campodónico、Marjorie Cepeda、Renato Contreras、José G. Santos
DOI:10.1021/jo902005y
日期:2009.12.4
theoretical analysis based on the group electrophilicity index, a reactivity descriptor that may be taken as a measure of the ability of a group or fragment to depart from a molecule with the bonding electron pair. The theoretical analysis is in accordance with the experimental results obtained and predicts relative nucleofugalities of O-aryl vs. S-aryl groups in a series of diaryl thiocarbonates not experimentally
nest: The first thiocarboxylation of styrenes and acrylates with CO2 to generate important β-thioacids was realized by using visible light as a driving force and catalytic iron salts as promoters. This multicomponentreaction features broad substrate scope, mild reaction conditions, and high regio-, chemo-, and diasteroselectivity. Mechanistic studies indicate that a radical pathway can account for the
Synthesis of S-Aryl/Alkyl Thiolcarbonates from Disulfides and Chloroformates in the Presence of the Zn/AlCl3 System
作者:Barahman Movassagh、Maryam Tavoosi
DOI:10.1007/s00706-007-0778-z
日期:2008.3
A simple, general, and high yielding method has been developed for the synthesis of S -aryl/alkyl- O -aryl/alkyl thiolcarbonates from various chloroformates and disulfides by reductive cleavage of the S–S bond with a Zn/AlCl3 system in dry acetonitrile at 80°C.