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Direct Photochemical Cleavage of the Cyclobutane Ring in Bicyclo[4.2.0]octane on 185nm Irradiation in Solution
Author(s) -
Adam Waldemar,
Oppenländer Thomas
Publication year - 1984
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198406412
Subject(s) - cyclobutanes , cyclobutane , photochemistry , chemistry , bicyclic molecule , octane , pentane , rydberg formula , irradiation , cleavage (geology) , excited state , ring (chemistry) , bond cleavage , stereochemistry , organic chemistry , materials science , ionization , physics , atomic physics , ion , fracture (geology) , nuclear physics , composite material , catalysis
The cleavage of cyclobutanes by short‐wavelength UV radiation was studied using the example of the title compound 1 , which contains no chromophoric substituents. 185 nm Irradiation of 1 in n ‐pentane leads preferentially to decompostion into 1,7‐octadiene. Presumably, Rydberg excited states having radical cation character, such as 2 , are involved.