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四氟乙烯齐聚体的反应 四氟乙烯四、五聚体和芳香胺的反应
REACTION OF TETRAFLUOROETHYLENE OLIGOMER REACTION OF TETRAMER, PENTAMER OF TETRAFLUOROETHYLENE WITH AROMATIC AMINES
【摘要】 <正> 前已报道四氟乙烯四聚体(全氟-3,4-甲基己烯-3)(1)、五聚体(全氟-3,4-二甲基-4-乙基己烯-2)(2)和脂肪烷氧以及脂肪胺的亲核反应.本文报道化合物1,2和芳香胺如苯胺、β-萘胺的反应.由于烯烃1、2双键处于分子中间,因而当亲核试剂进攻时,双键容易发生重排,生成的末端基烯烃更具反应性,故导致一取代、二取代、三取代以及环化降解等复杂产物.
【Abstract】 The reactions of tetrafluoroethylene tetramer(1)and pentamer(2) with aromatic amines, such as aniline and β-naphthylamine are reported.Compound 1 reacted with aniline in molar ratio 1:1 to give 3a and 4a as well as a small amount of 5a, in 1:2 molar ratio to give mainly 4a and 5a and a small amount of 3a and 6a, in 1:3 molar ratio to give 4a and to 5a.Compound 3a can be converted to 4a and 5a by further reaction with aniline in the presence of NEt3 in ether, but 4a was not convered to 5a.Compound 4a reacted with aniline(1:1 molar ratio) in DMF in the presence of KF at 60℃ to give mainly 7a and a small amount of 8a. 4a reacted with aniline in DMF at 120~160℃ in the presence of KF to give a small amount of the interesting heterocycles 8a, 9a and 10a.Compound 2 similarly reacted with aniline in ether to give 11a, 12a, 13a and 14a, and with β-naphthylamine to give 11b, 13b, 15b as well as the condensed ring compound 16b.When compound 11a 12a, were reacted further with aniline in DMF-KF at 50~60℃ 13a and 15a were formed respectively, indicating that compounds 11a and 12a are the possible intermediates in the formation of both 13b and 15b.Compound 12a reacted with DMF at 120~140℃ to give the heterocycle 17a besides 7a and 15a. The structure of all new compounds were established through IR, 1H and 19F NMR, MS and elemental analyses.
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1983年07期
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