Reaktive EC(pp)π-systeme XXII. Trifluormethylselenocarbonylfluorid: Darstellung und reaktionen mit 1,3-dienen sowie sekundären aminen
作者:Joseph Grobe、Duc Le Van、Joachim Welzel
DOI:10.1016/0022-328x(90)80005-k
日期:1990.4
The red-violet trifluoromethylselenocarbonylfluoride SeC(F)CF3 (1) is produced quantitatively by thermal 1,2-elimination of Me3SnF from trimethylstannylpentafluoroethylselane Me3SnSeC2F5 (2) at 300°C and 10−2 torr. 1 is less inert than the related selenocarbonyldifluoride SeCF2 and shows a strong dienophilicity. The reactions of 1 with 2,3-dimethyl-1,3-butadiene, isoprene, cyclopentadiene, penta
红紫色三氟甲基硒代羰基氟化物SeC(F)CF 3(1)通过在300°C和10 -2 torr下从三甲基苯乙烯基五氟乙基硒烷Me 3 SnSeC 2 F 5(2)进行Me 3 SnF的1,2-热消除来定量生产。与相关的硒代羰基二氟化物SeCF2相比,图1的惰性低,并且显示出很强的双亲性。的反应中1与2,3-二甲基-1,3-丁二烯,异戊二烯,环戊二烯,五甲基环戊二烯和1,3-环己二烯,分别得到相应的狄尔斯-阿德耳加合物3-7以高产率(70-98%) 。