Die photoisomerisierung von 3,6-hexanooxepin-4,5-dicarbonsäureestern zu tricyclo[6.2.1.0 1,5] undec-9-en-(3a,6-methanooctahydroazulen)-derivaten

Abstract Irradiation of the 3,6-hexanooxepins 1a – 1c affords the tricyclo[6.2.1.0 1,5 ] undec-9-ene(3a,6-methanooctahydroazulene)derivatives 2a – 2c in about 50% yield.