Alkylation of aromatic compounds with pummerer rearrangement intermediates. Application to the preparation of methyl-aryl compounds
作者:Ioannis K. Stamos
DOI:10.1016/s0040-4039(00)94912-8
日期:1985.1
Pummerer intermediates generated from dimethylsulfoxide reacted with aromaticcompounds in the presence of tin (IV) chloride to give methyl-thiomethylaryl products which were in turn desulfurized to methylaryl compounds with Raney-Ni.
Superelectrophilic Methylthiomethylation of Aromatics with Chloromethyl Methyl Sulfide/Aluminum Chloride (MeSCH<sub>2</sub>Cl:2AlCl<sub>3</sub>) Reagent
作者:George A. Olah、Qi Wang、Gebhard Neyer
DOI:10.1055/s-1994-25458
日期:——
Effective methylthiomethylation of aromatics was achieved by using chloromethyl methyl sulfide/aluminum chloride (MeSCH2Cl:2AICl3) as the alkylating agent. Excess aluminum chloride activates the thiocarboxonium ion intermediate by coordinating with sulfur and thus diminishes back donation of "electron density" into the carbocationic center, rendering it a superelectrophilic methylthiomethylating agent.