cheminform abstract: regiospecific synthesis of heterosubstituted phenols from...

2002 ring closure reactions ring closure reactions O 0130 18 - 057 Regiospeciﬁc Synthesis of Heterosubstituted Phenols from 3- Alkoxycarbonyl-3,5-dienoic Acids via Benzannulation Reaction. — A wide set of 2,4,5-substituted 3-hydroxybenzoic acid derivatives is accessible by the title reaction using either ethyl chloroformate or TFAA as activating agent. — (SERRA, STEFANO; FUGANTI, CLAUDIO; MORO, ALBERTO; J. Org. Chem. 66 (2001) 23, 7883-7888; Dip. Chim., Politec. Milano, CNR, I-20131 Milano, Italy; EN) 1

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Page 1: ChemInform Abstract: Regiospecific Synthesis of Heterosubstituted Phenols from 3-Alkoxycarbonyl-3,5-dienoic Acids via Benzannulation Reaction

2002 ring closure reactions

ring closure reactionsO 0130

18 - 057Regiospecific Synthesis of Heterosubstituted Phenols from 3-Alkoxycarbonyl-3,5-dienoic Acids via Benzannulation Reaction. —A wide set of 2,4,5-substituted 3-hydroxybenzoic acid derivatives is accessibleby the title reaction using either ethyl chloroformate or TFAA as activatingagent. — (SERRA, STEFANO; FUGANTI, CLAUDIO; MORO, ALBERTO;J. Org. Chem. 66 (2001) 23, 7883-7888; Dip. Chim., Politec. Milano, CNR,I-20131 Milano, Italy; EN)

biblio.ugent.be · Web view, which is very compliant to undergo nucleophilic attack. More specifically, the external addition of Lewis acids, acyl or alkoxycarbonyl electrophiles,

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