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Regioselective Air Oxidation of Sulfides to O,S ‐Acetals in a Bubble Column
Author(s) -
Brockmeyer Fabian,
Martens Jürgen
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201402310
Subject(s) - chemistry , bubble , atmospheric oxygen , environmentally friendly , regioselectivity , column (typography) , alkoxy group , oxygen , molecular oxygen , organic chemistry , inorganic chemistry , catalysis , computer science , alkyl , ecology , telecommunications , frame (networking) , parallel computing , biology
In this paper the use of a bubble column for a metal‐free, selective oxidation of α‐alkylthio‐imines to O , S ‐acetals is presented. During the synthesis, which is straightforward to perform, the sulfides are oxidized to α‐alkoxy‐ or, respectively, α‐hydroxysulfide by adding activated carbon in the presence of atmospheric oxygen only. We show that the use of the bubble column, which is unusual on laboratory scale, improves the efficiency of the reaction in comparison to common laboratory techniques. As atmospheric oxygen alone is used for oxidation, this method is cost saving, environmentally friendly, and safe.