155239-87-5Relevant academic research and scientific papers
Coupling and fast decarboxylation of aryloxyl radicals of 4-hydroxycinnamic acids with formation of stable p-quinomethanes
Daquino, Carmelo,Foti, Mario C.
, p. 1536 - 1547 (2007/10/03)
The reaction at room temperature of 3,5-di-tert-butyl- and 3,5-di-methoxy-4-hydroxycinnamic acids 1 and 2 with the dpph. radical in acetone or other non-hydroxylic polar solvents yields interesting dimeric p-quinomethanes 10-16 characterized by
PROCESS FOR THE SYNTHESIS OF ETHYLENE-BIS(P-METHYLENEQUINONES) AND CORRESPONDING BUTADIENE PHENOLS
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Page/Page column 4-5, (2008/06/13)
The invention relates to a process for the preparation of p-methylenequinones of formula (I) wherein R1 and R2 are as defined in the description comprising the oxidative coupling of a compound of formula (V) followed by decarboxylati
