Journal of the Chemical Society. Perkin transactions I p. 813 - 822 (1992)
Update date:2022-09-26
Topics:
Beck, Anthony L.
Mascal, Mark
Moody, Christopher J.
Coates, William J.
Irradiation of the trichloroacetates 2, 4 and 5, derived from the corresponding tryptophols, in methanolic acetonitrile results in photocyclisation to the indole 4-position, and the formation of the pyrrolobenzoxocines 9-11.Attempted photocyclisation of the 'reversed' α-chloro esters 15a, 15b and 18 was thwarted by readily occurring elimination of HCl, although the dimethyl compound 15c did cyclise to give the cycloheptaindole 20 upon irradiation in acetonitrile.
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