Synthesis and characterization of perfluorinated nitriles and the corresponding sodium 5-perfluoroalkyltetrazolate salts
作者:Margaret-J. Crawford、Thomas M. Klapötke、Hendrik Radies
DOI:10.1016/j.jfluchem.2008.09.007
日期:2008.12
heptafluorobutanamide) are described. Furthermore, the reactions of the perfluoroalkyl nitriles with sodium azide in acetonitrile forming sodium 5-trifluoromethyltetrazolate (2a), sodium 5-pentafluoroethyltetrazolate (2b) and sodium 5-heptafluoropropyltetrazolate (2c) were undertaken. The 5-perfluoroalkyltetrazolate salts were characterized using vibrational (Raman and infrared) and multinuclear (13C, 14/15N
描述了在温和的反应条件下,使用容易获得的起始原料(三氟乙酰胺,五氟丙酰胺,七氟丁酰胺),高产率合成三氟乙腈(1a),五氟丙腈(1b)和七氟丁腈(1c)。此外,使全氟烷基腈与叠氮化钠在乙腈中的反应形成5-三氟甲基四唑酸钠(2a),5-五氟乙基四唑酸钠(2b)和5-七氟丙基四唑酸钠(2c)。使用振动(拉曼光谱和红外光谱)和多核(13 C,14/15)表征5-全氟烷基四唑酸盐N,19 F)NMR光谱,差示扫描量热法,质谱和元素分析。另外,测定了2a的一水合物的单晶X射线结构。晶体数据:2a ·H 2 O:单斜晶,C 2 / m,a = 18.8588(6)Å,b = 7.1857(2)Å,c = 9.3731(3)Å,β = 102.938(3)°,V = 1237.94(7)3,ž = 8,d计算值 =1.911克厘米-3。