Tetrahedron p. 3843 - 3848 (1994)
Update date:2022-08-11
Topics:
Pandey, Bipin
Rao, Ashok T.
Dalvi, Pramod V.
Kumar, Pradeep
Photolysis of various conjugated cyclopropyl and epoxy ketones in 20percent triethyl amine (TEA) and ethanol leads to cleavage of cyclopropyl bond.Significant wavelength dependence phenomenon is observed during photolysis for the cleanliness and efficient photo transformation.Steroidal cyclopropyl ketones cleave efficiently at 300nm photolysis, whereas exo-cyclopropyl ketones cleave at 254nm.The regiochemistry of cyclopropyl bond cleavage is governed by the principle of maximum overlap.The nature of chemistry generated by ketyl radical is shown to be a function of methodology of their generation.
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