Graphene oxide (GO)-catalyzed chemoselective thioacetalization of aldehydes under solvent-free conditions
摘要:
An efficient method for the synthesis of open chain, cyclic, and unsymmetrical dithioacetals from aryl/hetero-aryl/aliphatic aldehydes is described. The reaction is performed using graphene oxide (GO) as the catalyst under solvent-free and aerobic conditions. High chemoselectivity is observed in the reaction as aryl/alkyl ketones do not give thioketals under the condition. (C) 2014 Elsevier Ltd. All rights reserved.
Dithioacetal Exchange: A New Reversible Reaction for Dynamic Combinatorial Chemistry
作者:A. Gastón Orrillo、Andrea M. Escalante、Ricardo L. E. Furlan
DOI:10.1002/chem.201600208
日期:2016.5.10
Reversibility of dithioacetal bond formation is reported under acidic mild conditions. Its utility for dynamic combinatorialchemistry was explored by combining it with orthogonal disulfide exchange. In such a setup, thiols are positioned at the intersection of both chemistries, constituting a connecting node between temporally separated networks.