Process for the preparation of N,N- dialkylaminophenyl alkanols
    4.
    发明授权
    Process for the preparation of N,N- dialkylaminophenyl alkanols 失效
    制备N,N-二烷基氨基苯基链烷醇的方法

    公开(公告)号:US5962739A

    公开(公告)日:1999-10-05

    申请号:US81431

    申请日:1998-05-19

    CPC分类号: C07C213/08

    摘要: The present invention provides a process for the production of an N,N-dialkylaminophenyl alkanol having the formula: ##STR1## in which R.sub.1 and R.sub.2, independently, are C.sub.1 -C.sub.4 alkyl, R.sub.3 is hydrogen, halogen, cyano, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and n is an integer from 1 to 4, comprising reacting an aminophenyl alkanol having the formula: ##STR2## in which R.sub.3 and n have their previous significance, with at least two moles of a dialkylsulfate having the formula: ##STR3## in which R.sub.1 and R.sub.2 have their previous significance. N,N-dialkylaminophenyl alkanols so obtained are valuable as intermediates for a wide range of end-products and are also useful, e.g., as accelerators for the peroxide-catalyzed polymerization of vinyl monomers, especially in polymerizable or curable formulations employed in dental applications.

    摘要翻译: 本发明提供了制备具有下式的N,N-二烷基氨基苯基链烷醇的方法:其中R 1和R 2独立地是C 1 -C 4烷基,R 3是氢,卤素,氰基,C 1 -C 4烷基或C 1 -C 4烷氧基, n是1至4的整数,包括使具有下式的氨基苯基链烷醇:其中R3和n具有其先前的含义,与至少两摩尔具有下式的二烷基硫酸盐反应:其中R1和R2具有其先前的含义。 所得到的N,N-二烷基氨基苯基链烷醇作为多种终产物的中间体是有价值的,并且也可用作例如乙烯基单体的过氧化物催化聚合的促进剂,特别是在牙科应用中使用的可聚合或可固化制剂中。