Tetrahedron

Cyansubstituierte chinone—II: 2, 3-, 2, 5-2, 6-dicyanchinone und tetracyanbenzochinon

K Wallenfels, G Bachmann, D Hofmann, R Kern

文献索引：Wallenfels,K. et al. Tetrahedron, 1965 , vol. 21, p. 2239 - 2256

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被引用次数: 37

摘要

A new mechanism for the addition-oxidation reaction of benzoquinone and hydrogen cyanide is proposed. The synthesis of 2, 3-dicyanobenzohydroquinones and 2, 3-dicyano- naphtho-hydroquinones by means of substitution under reductive conditions (2, 3- dihaloquinone, cyanide, alcohol) is described. The preparation of 2, 5-dicyano-3, 6-dichloro- and dibromobenzoquinone is outlined. In these compounds the halides are displaced by ...