Tetrahedron

Tetramethoxy-äthylen—I: Thermische spaltung von 7, 7-dimethoxy-norbornadien-derivaten

RW Hoffmann, H Häuser

Index: Hoffmann,R.W.; Haeuser,H. Tetrahedron, 1965 , vol. 21, p. 891 - 902

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Citation Number: 26

Abstract

5-Phenyl-1, 2, 3, 4-tetrachloro-7, 7-dimethoxynotbornadiene (II) may be smoothly cleaved along two pathways at 130°. Methyl 5-phenyl-2, 3, 4-trichlorobenzoate (VI) and methylchloride are obtained on the one hand, on the other hand result 2, 3, 4, 5- tetrachlorobiphenyl (III) and dimethoxycarbene (XI). The latter may be trapped with methanol yielding methyl ortho-formate or with sulfur giving methyl thionocarbonate. In the absence ...