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The structure of thiophene sesquioxide: Syn, endo ‐3a,4,7,7a‐tetrahydro‐4,7‐epithiobenzo[ b ] thiophene 1,1,8‐trioxide
Author(s) -
Merrill Ronald E.,
Sherwood Gary
Publication year - 1977
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570140723
Subject(s) - thiophene , chemistry , sesquioxide , benzene , ring (chemistry) , trioxide , stereochemistry , computational chemistry , crystallography , organic chemistry , sulfur
Thiophene sesquioxide is shown to be syn, endo ‐3a,4,7,7a‐tetrahydro‐4,7‐epithiobenzo[ b ]‐thiophene 1,1,8‐trioxide (I) by 1 H and 13 C nmr evidence. Assignment of the 13 C spectrum was facilitated by a cross‐ring long‐range 13 C‐ 1 H coupling. The mass spectrum of I is dominated by an unusual break‐down to give benzene radical cation.