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Synthesis of trans‐ Fused Oxabicyclo[5.2.0]nonan‐2‐ones via [2+2] Photocycloaddition of Oxepinones to Conjugated Alkenes
Author(s) -
Schmidt Kerstin,
Margaretha Paul
Publication year - 2011
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201100009
Subject(s) - chemistry , conjugated system , diene , stereochemistry , irradiation , medicinal chemistry , organic chemistry , polymer , natural rubber , physics , nuclear physics
On irradiation (350 nm) in the presence of 2,3‐dimethylbuta‐1,3‐diene, benzoxepinone 2 and dioxepinone 3 were converted regio‐ and diastereoselectively to trans ‐fused oxabicyclo[5.2.0]nonanones 5 and 9 , respectively.
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