Polyfluorocyclopentadienes. Part VI. Synthesis of 1- and 5-chloropentafluorocyclopentadiene
作者:R. E. Banks、M. Bridge、R. N. Haszeldine、D. W. Roberts、N. I. Tucker
DOI:10.1039/j39700002531
日期:——
blue material that might be perfluorofulvalene. Both 1- and 5- chloropentafluorocyclopentadiene readily combine with trifluoronitrosomethane to give Diels–Alder adducts, and 1,4-addition across the dienic system in the 5-chloroisomer also occurs with dimethyl acetylenedicarboxylate. The 19F n.m.r. spectra of 1- and 5-chloropentafluorocyclopentadiene are discussed and a reassignment of data for hexaf
五碳五氟环戊烷在大约70℃的热解中的热解。430°C产生全氟环戊二烯,1-氯-2,3,4,5,5-五氟环戊二烯,5-氯-1,2,3,4,5-五氟环戊二烯,三氯五氟环戊烯和被痕量氯氟萘和蓝色物质污染的全氟萘。那可能是全氟富瓦烯。1-和5-氯五氟环戊二烯都容易与三氟亚硝基甲烷结合生成狄尔斯-阿尔德加合物,而在5-氯异构体中二烯体系中的1,4-加成也发生在乙酰二羧酸二甲酯上。讨论了1-和5-氯五氟环戊二烯的19 F nmr光谱,并提出了六氟环戊二烯的数据重新分配。