SYNTHESIS OF MONOSUBSTITUTED TRIFLUOTOMETHYLATED DERIVATIVES OF 2<i>H</i>-THIETE, DIHYDROTHIOPHENES AND 2<i>H</i>-THIOPYRANES
DOI:
https://doi.org/10.1007/6529Keywords:
dihydrothiopyranone, keto sulfide, Ruppert–Prakash reagent, thiolactone, trifluoromethyl, vinylsulfoneAbstract
Cyclic keto sulfides (thietan-3-one, tetrahydrothiophen-3-one, γ-thiobutyrolactone, δ-thiovalerolactone, thiopyran-3-one, and thiopyran-4-one) react with trifluoromethyltrimethylsilane (Ruppert–Prakash reagent) to afford trifluoromethyl-substituted hydroxysulfides which form monotrifluoromethyl-substituted cyclic unsaturated sulfones via successive oxidation and dehydration reactions. It was shown that the double bond in the obtained compounds is active toward nucleophilic reagents such as amino compounds and 1,3-dipoles.
Authors: Serhii A. Siryi, Vadim М. Тimoshenko*, Tymofii V. Rudenko, Yuriy M. Markitanov, Eduard B. Rusanov, Yuriy G. Shermolovich