Improvements in the synthesis of N-bromo-difluoromethanimine, CF2NBr, will be described along with some reaction chemistry. The imine undergoes thermal addition with a variety of olefins, leading to the simple addition product and to the formation of telomers. Photolysis with CO forms the isocyanate BrCF2NCO, in high yield. Pyrolysis of CF2NBr at ∼ 450°C gives high yields of tetrafluoro-2,3-diaza-1
将描述N-
溴-二
氟甲
亚胺CF2 = NBr的合成方法,以及一些反应
化学方法。
亚胺与各种烯烃进行热加成,导致简单的加成产物和端粒的形成。光解与CO形成的
异氰酸酯BrCF 2 NCO,以高收率。CF 2 NBr在约450°C的温度下热解可得到高产率的四
氟-2,3-二氮杂-
1,3-丁二烯,CF 2 = N = N = CF 2,使该化合物首次易于获得。将讨论二烯的一些新的反应
化学。