130663-55-7Relevant academic research and scientific papers
Acid-catalysed Rearrangement of the Diels-Alder Adducts of Activated Quinones
Farina, Francisco,Paredes, M. Carmen,Valderrama, Jaime, A.
, p. 2345 - 2346 (1990)
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.
Studies on Quinones. 24. Rearrangement of Diels-Alder Adducts of Activated Quinones under Acidic Conditions
Farina, Francisco,Paredes, M. Carmen,Valderrama, Jaime A.
, p. 4629 - 4640 (2007/10/02)
The Diels-Alder adducts 5, 19, 9, 10, 8, 11, of benzoquinones bearing activating groups (COCH3, COCH=CHPh, CO2Me, NO2, CHO, CN) by treatment with 1.3 N hydrochloric acid are initially converted into the dihyydrobenzofurans 7, 22, the corresponding alcohol
