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Substituted benzaldehydes in the darzens condensation with alkyl dihaloacetates
Mamedov,Berdnikov,Tsuboi,Hamamoto,Komiyama,Gorbunova,Gubaidullin,Litvinov
, p. 1455 - 1463 (2006)
The Darzens reaction of dihaloacetic acid esters with aromatic aldehydes produces either arylhaloglycidic or arylhalopyruvic esters depending on the nature of the substituent in the aromatic ring. Alkyl p- methoxyphenylchloropyruvates undergo spontaneous intermolecular cyclocondensation to form pyranone or furanone derivatives depending on the character of the alkyl fragment.
