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CO-Trapping Reaction under Thermolysis of Alkoxyamines:  Application to the Synthesis of 3,4-Cyclopenta-1-tetralones

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journal contribution
posted on 07.07.2005, 00:00 by Yoshitaka Uenoyama, Masaaki Tsukida, Takashi Doi, Ilhyong Ryu, Armido Studer
An efficient one-pot sequence comprising a PRE-mediated radical 5-exo-cyclization, a radical carbonylation, a nitroxide trapping reaction, and a subsequent acid-catalyzed Friedel−Craft-type acylation provides a new entry into 3,4-cyclopenta-1-tetralones. Eight examples are presented.