Bulletin of the Chemical Society of Japan p. 336 - 338 (1989)
Update date:2022-08-18
Topics:
Takuwa, Akio
Fujii, Naomi
Tagawa Hiroyuki
Iwamoto, Hidetoshi
Photocycloaddition and hydrogen abstraction reactions between benzophenones and allylic silanes have benn investigated.The high regioselective oxetane formations were explained in terms of an stability due to the ?Si-C-p? hyperconjugation of β-silyl radicals in diradical intermediates.Allyl radical substituted by a trimethylsilyl-group, which was generated from a hydrogen abstraction reaction, recombinated with benzophenone ketyl radical at the γ position.No electron transfer products were observed in the reactions.
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