- Condensation of Diethyl Acetonedicarboxylate. III. Isolation and Acylation of Diethyl Acetonedicarboxylate-Magnesium Complex
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Diethyl acetonedicarboxylate (DADC)-magnesium complex, (DADC)2Mg (5b), was isolated from the reaction of DADC and MgCl2 with Et3N, or by the removal of coordination water from (DADC)2Mg*2H2O (5a).Compound 5b could be regarded as an intermediate in the sel
- Yamato, Masatoshi,Kusunoki, Youichiro
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p. 1214 - 1220
(2007/10/02)
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- Process for the preparation of 5-substituted resorcinols and related intermediates
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According to the present invention, 5-substituted resorcinols of the formula I STR1 wherein R1 represents a hydrocarbon radical, optionally unsubstituted or substituted by inert substituents, are prepared by reacting a carboxylic acid ester of the formula II wherein R2 represents a non-aromatically bound lower hydrocarbon radical, in the presence of an alkaline condensation agent, with a diester of 3-oxoglutaric acid of the formula III wherein R3 and R4 represent non-aromatically bound lower hydrocarbon radicals; hydrolyzing the resulting dihydroxyisophthalic acid acid ester of the formula IV STR2 and decarboxylating the hydrolyzed product, a specific embodiment is the preparation of 5-pentylresorcinol.
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