申请人:Melder Johann-Peter
公开号:US20100191000A1
公开(公告)日:2010-07-29
Process for preparing an N-unsubstituted or N-substituted aziridine of the formula
which comprises reacting an olefin of the formula I
where R
1
to R
5
are each, independently of one another, hydrogen, a linear or branched alkyl radical having from 1 to 16 carbon atoms, a hydroxyalkyl radical having from 1 to 4 carbon atoms, a cycloalkyl radical having from 5 to 7 carbon atoms, a benzyl or phenyl radical which in each case may be substituted in the o, m or p position of the phenyl radical by methoxy, hydroxy, chlorine or alkyl radicals having from 1 to 4 carbon atoms and the radical R
1
or R
2
together with the radical R
3
or R
4
may be closed to form a 5- to 12-membered ring or the radicals R
1
and R
2
may be closed to form a 5- to 12-membered ring, with ammonia or a primary amine of the formula R
5
NH
2
in the presence of iodine or bromine.
制备式的N-未取代或N-取代环氧丙烷的方法包括反应式I的烯烃,其中R1至R5各自独立地是氢、具有1至16个碳原子的直链或支链烷基基团、具有1至4个碳原子的羟基烷基基团、具有5至7个碳原子的环烷基基团、苯甲基或苯基基团,其中在每种情况下苯基基团的o、m或p位置可能被甲氧基、羟基、氯或具有1至4个碳原子的烷基基团取代,且基团R1或R2与基团R3或R4可以闭合形成5至12元环,或基团R1和R2可以闭合形成5至12元环,与氨或具有式R5NH2的初级胺在碘或溴的存在下发生反应。