Journal ArticleDOI
Cyclic ether formation with N-(phenylthio)morpholine
TLDR
Cyclic ethers with 5- to 7-membered rings are formed by sulphenoetherification of unsaturated alcohols with N-(phenylthio)morpholine and trifluoromethanesulphonic acid.Abstract:
Cyclic ethers with 5- to 7-membered rings are formed by sulphenoetherification of unsaturated alcohols with N-(phenylthio)morpholine and trifluoromethanesulphonic acid.read more
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Journal ArticleDOI
Iodine-catalyzed three-component oxysulfenylation of alkenes with sulfonyl hydrazides and alcohols
TL;DR: An unprecedented three-component oxysulfenylation reaction of alkenes with sulfonyl hydrazides and alcohols has been developed in the presence of 20 mol% iodine to give a range of structurally diverse β-alkoxy sulfides in good to excellent yields.
Journal ArticleDOI
Catalytic chalcogenylation under greener conditions: a solvent-free sulfur- and seleno-functionalization of olefins via I2/DMSO oxidant system.
André A. Vieira,Juliano B. Azeredo,Marcelo Godoi,Claudio Santi,Eufrânio N. da Silva Júnior,Antonio L. Braga +5 more
TL;DR: A solvent- and metal-free methodology for the alkoxy-chalcogenylation of styrenes, using molecular iodine as a catalyst, DMSO as a stoichiometric oxidant, and different nucleophiles under microwave irradiation is reported.
Journal ArticleDOI
Enantioselective oxysulfenylation and oxyselenenylation of olefins catalyzed by chiral Brønsted acids
TL;DR: In this article, the authors described Bronsted acid catalyzed enantioselective oxysulfenylation and oxyselenenylating of olefins using enantiomerically enriched tetrahydrofurans with up to 63% with dibenzoyl-d-tartaric acid and its derivatives as catalyst.
Journal ArticleDOI
Sulfenylation of some pyrroles and indoles
TL;DR: In this article, methyl sulfenylation of 1-substituted pyrroles and indoles was observed using 1-(methylthio)morpholine and an acid catalyst or with methylsulfenyl chloride and excess pyridine.
Journal ArticleDOI
Acid-catalyzed regioselective sulfetherification of alkenols and stereoselective rearrangement of tetrahydrofuran to tetrahydropyran.
TL;DR: An efficient acid-catalyzed sulfetherification of various unsaturated alcohols with sulfenamides to form tetrahydrofurans and tetrahedropyrans regioselectively is described.
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