Reactions of tetrafluoroethene oligomers part 11 [1] flash vacuum thermolysis of some products derived from the pentamer and hexamer oligomers.
作者:Paul L. Coe、Michael I. Cook、Ian R. Owen
DOI:10.1016/s0022-1139(00)83931-7
日期:1989.3
Flash vacuum thermolysis of a variety of derivatives of tetrafluoroethene oligomers in the temperature range 450-600° at 20mm - 0.4mm Hg affords a number of unusual products. Thus, the pentamer (1) affords perfluoro 1,2,3- trimethyl cyclobutene (2), and perfluoro-2,3-dimethylpentadiene (3,) (4) as previously reported, but in much different ratios. The diazoalkane (5) affords and -3H-perfluoro-4-methylhex-3-ene
在20mm-0.4mm Hg的温度范围内(450-600°),对四氟乙烯低聚物的多种衍生物进行快速真空热解可提供许多不同寻常的产品。因此,五聚体(1)提供了全氟的1,2,3-三甲基环丁烯(2)和全氟的2,3-二甲基戊二烯(3,)(4),但比例却大不相同。重氮烷(5),得到和-3H -全氟-4-甲基己-3-烯(6)(7)和二烯E / Z - 4H,5H -全氟-3,6-二甲基辛-3,5-二烯(8):全氟(2,3-二甲基-3(3-甲基戊基))叠氮基(9)得到E / Z-2-氰基-全氟-3-甲基戊-2-烯(10,11)。全氟-(2,3-二甲基-2-(3-甲基戊基)环氧乙烷(12)得到全氟-2-甲基丁-1-烯(13)和全氟-2,3-二甲基戊-2-烯的混合物(14 ).TFE(15)的六聚体低聚物提供全氟-1-甲基-2-(1-甲基丙基)环丁-1-烯(16)和E / Z全氟-2-甲基-3-(1-甲基丙基)丁酸酯-1