1-Phenylnaphthalenes. Part II. The cyclisation of ethyl hydrogen γγ-di-o-methoxyphenyl-and γγ-di-p-methoxyphenyl-itaconate to the corresponding 1- …

FG Baddar, LS El-Assal, VB Baghos

Index: Baddar et al. Journal of the Chemical Society, 1955 , p. 1714,1717

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Abstract

SYMMETRICALLY &substituted benzophenones were condensed with diethyl succinate, potassium tert.-butoxide being the catalyst (cf. Johnson et al., J. Amer. Chem. SOC., 1947, 69, 74; 1950, 72, 511); 2: 2'-dimethoxybenzophenone thereby gave ethyl hydrogen yy-di-o-