Synthesis of (6,7-dichlorononafluoro-5,6,7,8-tetrahydronaphthalen-2-yl)acetic acid and its transformation into perfluorinated 2-methylnaphthalene and 6-methyl-1,4-dihydronaphthalene
作者:V. R. Sinyakov、T. V. Mezhenkova、V. M. Karpov、Ya. V. Zonov
DOI:10.1134/s1070428017120065
日期:2017.12
acetic acid. The latter was treated with PCl5 on heating to obtain 2,2-dichloro-(6,7-dichlorononafluoro-5,6,7,8-tetrahydronaphthalen-2-yl)acetyl chloride which was converted to 2,3-dichlorononafluoro-6-trifluoromethyl-1,2,3,4-tetrahydronaphthalene by the action of SbF5. The reduction of 2,3-dichlorononafluoro-6-trifluoromethyl-1,2,3,4-tetrahydronaphthalene with zinc in 1,4-dioxane gave perfluoro-6-methyl-1
2,3-二氯十氟四氢化萘与氰基乙酸乙酯反应生成2-氰基-2-(6,7-二氯壬氟-5,6,7,8-四氢萘-2-基)乙酸乙酯,将其水解为(6,7-二氯九氟乙基) -5,6,7,8-四氢萘-2-基)乙酸。后者在加热下用PCl 5处理以获得2,2-二氯-(6,7-二氯壬氟-5,6,7,8-四氢萘-2-基)乙酰氯,将其转化为2,3-二氯壬氟-在SbF 5的作用下6-三氟甲基-1,2,3,4-四氢萘。在1,4-二恶烷中用锌还原2,3-二氯九氟-6-三氟甲基-1,2,3,4-四氢萘得到全氟-6-甲基-1,4-二氢萘,在DMF中为全氟-2 -甲基萘。