The preparation of aliphatic fluorinated sulfoximines
This work describes the preparation of an aliphatic series of the N-trifluoromethanesulfonyl-S-trifluoromethyl-S-sulfoximine group. The key step of the synthesis is the imination of fluorinated sulfoxides under experimental conditions, which avoid cleavage of the alkyl group. The formation of sulfoximines 6 and 15 allows the preparation of various fluorinated sulfoximines having strong electron withdrawing properties.
Preparation of trifluoromethyl sulfides or selenides from trifluoromethyl trimethylsilane and thiocyanates or selenocyanates
Trifluoromethyl sulfides (or selenides) are easily obtained in one pot at 0°C from thiocyanates (or selenocyanates), commercial trifluoromethyl trimethylsilane and catalytic amounts of tetrabutylammonium fluoride (TBAF).
Billard, Thierry,Large, Sylvie,Langlois, Bernard R.
p. 65 - 68
(2007/10/03)
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