92929-94-7Relevant academic research and scientific papers
Process for the preparation of oxiranes
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, (2008/06/13)
A process for the preparation of an oxirane of the formula STR1 in which X is 4-chlorobenzyl, 4-phenylphenoxy or 1H-(1,2,4)-triazolyl, comprising reacting dimethyl sulphate with an excess of dimethyl sulphide thereby to form trimethylsulphonium methyl-sulphate of the formula and without prior isolation reacting the trimethylsulphonium methyl-sulphate with a keytone of the formula STR2 in the presence of solid potassium hydroxide or sodium hydroxide in dimethyl sulphide at a temperature between 0° C. and 50° C.
