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The Reaction of Dichlorocarbene with 2H-1-Benzothiopyran and 4H-1-Benzothiopyran1

✍ Scribed by Parham, William E.; Koncos, Robert


Book ID
115445486
Publisher
American Chemical Society
Year
1961
Tongue
English
Weight
686 KB
Volume
83
Category
Article
ISSN
0002-7863

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## Abstract Irradiation (λ = 350 nm) of 1__H__‐[2]benzothiopyran‐1‐one (2) in the solid state affords selectively and in good yield 6aα, 6bα, 12bα, 12cα ‐tetrahydrocyclobuta[1, 2‐__c__:4, 3‐__c__′]bis([2]benzothiopyran)‐5, 8‐dione (3), the head‐to‐head (HH) __cis__‐__cisoid__‐__cis__‐cyclodimer of