Strain-Assisted a-Cleavage Reactions of Thioketones: Cyclobutanethiones

K. Muthuramu, B. Sundari, V. Ramamurthy

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Photochemical α-cleavage from the lowest triplet state (nπ*, T1), resulting in the generation of a diradical intermediate, appears to be general for cyclobutanethiones. The diradical intermediate derived from 1,3-dithione is observed to undergo ring expansion to carbene or close to either dithione or dithiolactone. The photochemical behavior reported here for cyclobutanethiones is different from that of the corresponding cyclobutanones. α-Cleavage processes in the case of cyclobutanethiones are not efficient and are often accompanied by side reactions.

Original languageEnglish (US)
Pages (from-to)4482-4487
Number of pages6
JournalJournal of Organic Chemistry
Issue number24
StatePublished - Dec 1983
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry


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