发明名称 |
PROCESS FOR THE PREPARATION OF N,N-DISUBSTITUTED MONO- AND OLIGOURETHANES |
摘要 |
PROCESS FOR THE PREPARATION OF N,N-DISUBSTITUTED MONO- AND OLIGOURETHANES N,N-disubstituted monourethanes and oligourethanes are produced by reacting (a) N-aliphatically and/or N-cycloaliphatically and/or N-araliphatically substituted monourethanes and/or oligourethanes with an alkylating agent in the presence of a solid alkali metal hydroxide. No solvent need be employed but if a solvent is used, that solvent should be an aprotic organic solvent. The alkali metal hydroxide must be used in an equivalent amount. A phase transfer catalyst may optionally be employed. The N,N-disubstituted urethanes obtained by this process are useful in the production of dyes, pharmaceutical products and thermostable synthetic materials. |
申请公布号 |
CA1292010(C) |
申请公布日期 |
1991.11.12 |
申请号 |
CA19870531862 |
申请日期 |
1987.03.12 |
申请人 |
SANDERS, JOSEF |
发明人 |
SANDERS, JOSEF;DIETERICH, DIETER |
分类号 |
C07C269/02;C07C67/00;C07C239/00;C07C271/06 |
主分类号 |
C07C269/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|