Synthesis of cyclenphosphoranes with polyfluorophenyl substituents; an X-ray structure of N-methyl cyclen-p-(heptafluorotolyl)phosphorane
作者:O.D Gupta、Robert L Kirchmeier、Jeanine M Shreeve
DOI:10.1016/s0022-1139(99)00052-4
日期:1999.7
conditions gave cyclen-p-(heptafluorotolyl)phosphorane (3), cyclen-p-(pentafluorophenyl)phosphorane (4), cyclen-p-(cyanotetrafluorophenyl)phosphorane (5), cyclen-p-(tetrafluoronitrophenyl)phosphorane (6), cyclen-p-(n-butyltetrafluorophenyl)phosphorane (7), cyclen-p-(tetrafluorophenyl)phosphorane (8) and cyclen-p-(p-cyanotetrafluoro-phenoxytetrafluorophenyl)phosphorane (9), respectively, in good yields. All
环磷磷烷(2)的锂化衍生物与八氟甲苯,六氟苯,五氟苄腈,五氟硝基苯,五氟-正丁基苯,五氟苯和对-(氰基四氟苯氧基-五氟苯)之间的复分解反应在回流条件下产生了环-对-(七氟甲苯基三磷酰基)),环-对-(五氟苯基)膦(4),环-对-(氰基四氟苯基)磷(5),环-对-(四氟硝基苯基)磷烷(6),环-对-(n分别以良好的收率得到了丁基丁基四氟苯基)磷烷(7),环戊基对-(四氟苯基)磷烷(8)和环戊基对-(对氰基四氟-苯氧基四氟苯基)磷烷(9)。所有产品都通过光谱和分析技术进行了表征。这些材料具有中等程度的热稳定性,但对湿气敏感,会水解形成环氧化膦(10)。将CH 3 I加至3可获得碘化磷铵(11)。X射线晶体结构11获得了。晶体是三斜晶的,具有一个空间群P1。晶胞参数a = 7.8652(2)Å,b = 8.584(2)Å,c = 22.1573(3)Å; α = 80.9010(10)°; β =