Journal
ORGANOMETALLICS
Volume 33, Issue 20, Pages 5626-5629Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om500442u
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- Japan Society for the Promotion of Science (JSPS)
- Japan Science and Technology Agency (JST)
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Bis-hydrothiolation of alkynes providing anti-Markovnikov dithioacetals is reported. Lewis-acidic Ca(OSO2C4F9)(2) (Ca(ONf)(2)) was synthesized for the first time and was shown to be an excellent catalyst for the transformation. The reaction is highly selective and has a wide substrate scope. It was revealed that vinyl sulfides were intermediates for this transformation and that Ca(ONf)(2) efficiently catalyzed the unprecedented reactions of unactivated vinyl sulfides with thiols to afford the dithioacetals in good to high yields.
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