作者:R.W. Hoffmann、H. Häuser
DOI:10.1016/0040-4020(65)80025-4
日期:1965.1
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
5-苯基-1,2,3,4-四氯-7,7-二甲氧基降冰片二烯(II)可能会在130°沿着两个途径平稳裂解。一方面获得5-苯基-2,3,4-三氯苯甲酸甲酯(VI)和氯甲烷,另一方面获得2,3,4,5-四氯联苯(III)和二甲氧基卡宾(XI)。后者可以用甲醇制得原甲酸甲酯,或用硫制得硫代硫代碳酸甲酯。在没有其他伙伴的情况下,XI产生四甲氧基乙烯。讨论了II和其他7,7-二甲氧基降冰片二烯衍生物的热解。