Helvetica Chimica Acta p. 2159 - 2165 (1987)
Update date:2022-08-17
Topics:
Wenkert, Ernest
Greenberg, Richard S.
Kim, Hong-Seok
The Rh-catalyzed reaction of 1,3-butadiene with ethyl 3-diazopyruvate leads, inter alia, to a dihydro-oxepinecarboxylate whose oxidation and functional-group manipulation produce salicylates.Wittig reactions on the acylcyclopropane accompanying the dihydrooxepine yields acrylates whose pyrolyses afford cycloheptadienecarboxylates.Oxidation and functional-group transformation produces the natural tropone, nezukone.
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