[EN] METHOD FOR INCORPORATING PROTECTING ACETAL AND ACETAL ESTER GROUPS, AND ITS APPLICATION FOR THE PROTECTION OF HYDROXYL FUNCTION [FR] PROCÉDÉ POUR INCORPORER DES GROUPES ACÉTAL ET ESTER D'ACÉTAL PROTECTEURS ET SON APPLICATION POUR LA PROTECTION DE LA FONCTION HYDROXYLE
A highly selective, environmentally friendly, and scalable electrochemical protocol for the construction of α-acyloxy sulfides, through the synergistic effect of self-assembly-induced C(sp3)–H/O–H cross-coupling, is reported. It features exceptionally broad substrate scope, high regioselectivity, gram-scale synthesis, construction of complex molecules, and applicability to a variety of nucleophiles
Homolytic aromatic substitution. Part XXXIV. Major products from the reaction of benzoyl peroxide with p-disubstituted benzenes
作者:D. I. Davies、D. H. Hey、B. Summers
DOI:10.1039/j39700002653
日期:——
p-tolyl sulphide, or methyl p-tolyl sulphoxide. The major reaction is oxidation at the sulphur atom, which leads to the formation of, in addition to benzoic anhydride, arylthiomethyl and arylsulphinylmethyl benzoates from the aryl sulphides and sulphoxides respectively. There is no evidence that free radicals are involved in the reaction of benzoyl peroxide with these sulphur-containing compounds.
Gold-Catalyzed, Iodine(III)-Mediated Direct Acyloxylation of the Unactivated C(sp<sup>3</sup>)-H Bonds of Methyl Sulfides
作者:Sheng-rong Guo、Pailla Santhosh Kumar、Yan-qin Yuan、Ming-hua Yang
DOI:10.1002/ejoc.201600632
日期:2016.9
An efficient reaction for the iodine(III)‐mediated acyloxylation of the unactivated C(sp3)–H bonds of methyl sulfides is reported. This strategy utilizes various hypervalent iodine reagents and involves an ionic pathway to deliver the desired products in excellent yields (DCE = 1,2‐dichloroethane).
Fe 2 O 3 -catalyzed Pummerer rearrangement of acyl chlorides and sulfoxides: Facile synthesis of alkylthiomethyl ester
作者:Haotian Xing、Long Chen、Yimin Jia、Zhongxing Jiang、Zhigang Yang
DOI:10.1016/j.tetlet.2017.04.053
日期:2017.6
A simple, effective approach for the Pummererrearrangement of acyl chlorides with sulfoxides by using a low-cost and more abundant Fe catalyst has been described. The alkylthiomethyl ester products were prepared in good to excellent yields for a range of different substrates including asymmetrical sulfoxides and acyl chlorides with a variety of functional groups under mild reaction conditions. The
Direct N-functionalization of benzimidazoles and related azaheterocycles has been achieved using readily accessible α-acyloxy sulfides under transition metal-free conditions. In the presence of the base, potassium carbonate, a variety of N-functionalized azaheterocyclic compounds bearing an N-alkyl ester moiety were synthesized from corresponding heterocyclic precursors. The present reaction does not