Journal of the Chemical Society. Perkin transactions I p. 2345 - 2346 (1990)
Update date:2022-08-04
Topics:
Farina, Francisco
Paredes, M. Carmen
Valderrama, Jaime, A.
The Diels-Alder adducts (1) - (5) in the presence of the hydrochloric acid undergo a 4a,5 carbon-carbon bond fission to give rearranged compounds of type (9), (10), or the dihydrobenzofurans (11) - (14).Compound (16), obtained by hydrolysis of the adduct (15), rearranges to (17) in the presence of ethanol and silica gel.
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Doi:10.1021/acs.orglett.6b01425
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