申请人:E. I. Du Pont de Nemours and Company
公开号:US04130715A1
公开(公告)日:1978-12-19
Polycyclic trisaminomethanes of the formula ##STR1## in which R.sup.1 and R.sup.2, alike or different, are alkylene; R.sup.3 and R.sup.4, alike or different, are alkyl, cycloalkyl, or aralkyl; or R.sup.3 and R.sup.4 are joined together to form an alkylene group which may be interrupted by (1) a ##STR2## group where Q is hydrogen or alkyl, or (2) ONE OR TWO --O-- linkages; and There are at least 2 carbons between each two hetero atoms in the outer ring system, Are useful as initiators for the polymerization of pivalolactone. These polycyclic trisaminomethanes are prepared by reacting a polyamine of the formula R.sup.3 NHR.sup.1 NHR.sup.2 NHR.sup.4 with a dialkoxy(dialkylamino)methane of the formula (RO).sub.2 CHNR.sub.2 ' in which R and R', alike or different, are alkyl.
公式为##STR1##的多环三氨甲烷,其中R1和R2,相同或不同,为烷基;R3和R4,相同或不同,为烷基、环烷基或芳基烷基;或R3和R4连接在一起形成一个烷基,该烷基可以被(1) ##STR2##群体中断,其中Q为氢或烷基,或(2)一个或两个--O--连接;并且在外环系统中,每两个杂原子之间至少有2个碳原子,可用作对邻丙酮内酯的聚合引发剂。这些多环三氨甲烷通过将公式为R3NHR1NHR2NHR4的多胺与公式为(RO)2CHNR2'的二烷氧基(二烷基氨基)甲烷反应制备,其中R和R'相同或不同,为烷基。