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Parker et al., 1980 - Google Patents

Regiospecific nucleophilic aromatic substitution: conjugate addition of active methylene compounds to quinone monoacetals and aromatization of the adducts

Parker et al., 1980

Document ID
17266914566384862874
Author
Parker K
Kang S
Publication year
Publication venue
The Journal of Organic Chemistry

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Snippet

Diethyl malonate adds to a variety of quinone monoacetals in a Michael reaction; acid- catalyzed loss of methanol and enolization converts the adducts to hydroquinone monoethers substituted ortho to the alkoxy substituent. The same sequence applied to ethyl …
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    • C07D307/78Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
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