Process for the preparation of N,N- dialkylaminophenyl alkanols
    1.
    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。

    Process for the preparation of 1, 8-naphthosultam
    3.
    发明授权
    Process for the preparation of 1, 8-naphthosultam 失效
    制备1,8-萘磺酸钠的方法

    公开(公告)号:US6046339A

    公开(公告)日:2000-04-04

    申请号:US297518

    申请日:1999-05-03

    申请人: Claus Korhummel

    发明人: Claus Korhummel

    IPC分类号: C07D275/06 C07D275/04

    CPC分类号: C07D275/06

    摘要: The present invention provides a process for the production of 1,8-naphthosultam comprising reacting 1-naphthylamine-8-sulfonic acid with excess POCl.sub.3 or PCl.sub.3 in the presence, as a proton acceptor, of a mono-, di-, or preferably tri-C.sub.1 -C.sub.4 alkylamine, and in the presence, as a reaction solvent, of mono-, di-, or tri-C.sub.1 -C.sub.4 alkylbenzene.

    摘要翻译: PCT No.PCT / EP97 / 05972 Sec。 371日期1999年5月3日 102(e)日期1999年5月3日PCT 1997年10月29日PCT公布。 第WO98 / 21192号PCT公告 日期1998年5月22日本发明提供了一种生产1,8-萘磺酸的方法,其包括使1-萘胺-8-磺酸与过量的POCl 3或PCl 3作为质子受体存在的单 - ,二 - ,或优选三-C 1 -C 4烷基胺,并且在作为反应溶剂存在单 - ,二 - 或三-C 1 -C 4烷基苯的存在下进行。