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Dienone?phenol rearrangement mechanism of 8,8-dimethyl- and 6,8,8-trimethyl-naphthalene-1,4,5(8H)-triones in acetic anhydride solution

✍ Scribed by Goycoolea, Candelaria; Santos, Jos� G.; Valderrama, Jaime A.


Book ID
121348656
Publisher
Royal Society of Chemistry
Year
1988
Tongue
English
Weight
395 KB
Volume
7
Category
Article
ISSN
1472-779X

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## Abstract The reaction of 5‐amino‐1‐phenylpyrazole‐4‐carbonitriles 1a‐c with dimethyl acetylenedicarboxylate in the presence of potassium carbonate in dimethyl sulfoxide gave trimethyl 4,5,5a,8‐tetrahydro‐1‐phenyl‐4,8‐dioxo‐1__H__‐pyrazolo[3,4‐__e__]indolizine‐5,5a,6‐tricarboxylate derivatives 3a