ISSN:
0075-4617
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Heterocyclic Seven-Membered Ring Compounds, XXI. - Photochemical Reactions of Substituted 4-Phenyl-1-benzothiepinsOn photoisomerization substituted 4-phenyl-1-benzothiepins 2a-d undergo ring closure to give the expected 1-phenyl-2a,7b-dihydrocyclobuta[b][1]benzothiophenes 4a-d which are then transformed into the corresponding 2a-phenyl-2a,7b-dihydrocyclobuta[b][1]benzothiophenes 5a-d in a second photoreaction.
Notes:
Die Photoisomerisierung der substituierten 4-Phenyl-1-benzothiepine 2a-d liefert zunächst unter Ringschluß die erwarteten 1-Phenyl-2a,7b-dihydrocyclobuta[b][1]benzothiophene 4a-d. Diese werden in einer nachfolgenden Photoumlagerung in die entsprechenden 2a-Phenyl-2a,7b-dihydrocyclobuta[b][1]benzothiophene 5a-d übergeführt.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.197719771109
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