Helvetica Chimica Acta p. 2350 - 2354 (1985)
Update date:2022-08-17
Topics:
Kiesewetter, Rene
Margaretha, Paul
On irradiation (λ > 305 nm) in alcohols, 5,5-dimethyl-2(5H)-thiophenone (1b) is converted to (E)-4-mercapto-4-methyl-2-pentenoates 8.These esters undergo a consecutive light-induced reaction affording thiolanes when irradiated in the presence of alkenes, and either 2,3-dihydrothiophenes or 3-thiabicyclo<3.1.0>hexanes with alkynes.
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