Process for the Synthesis of Cyclic Alkylene Ureas
    1.
    发明申请
    Process for the Synthesis of Cyclic Alkylene Ureas 有权
    合成环亚烷基脲的方法

    公开(公告)号:US20140163221A1

    公开(公告)日:2014-06-12

    申请号:US14233302

    申请日:2012-07-19

    摘要: The invention relates to a process for the synthesis of cyclic alkylene ureas comprising reacting in the presence of a basic catalyst, a difunctional amine A having two primary amino groups, and an aliphatic organic carbonate component C selected from the group consisting of dialkyl carbonates CD and of alkylene carbonates CA, wherein the ratio of the amount of substance Ji(—NH2) of primary amino groups —NH2 in the difunctional amine A to the sum M(C) of the amount of substance n(CD) of carbonate groups of a dialkyl carbonate CD and the amount of substance n(CA) of carbonate groups in an alkylene carbonate CA, is at least more than 2, and to the product obtained by this process.

    摘要翻译: 本发明涉及一种合成环状亚烷基脲的方法,包括在碱性催化剂,具有两个伯氨基的双官能胺A和选自碳酸二烷基酯CD和 的碳酸亚烷基酯CA,其中二官能胺A中的伯氨基-NH 2的物质Ji(-NH 2)的量与碳酸酯基的物质n(CD)的量的总和M(C)的比率 碳酸二烷基碳酸酯CD和碳酸亚烷基碳酸酯CA中的碳酸酯基团的物质n(CA)的量至少大于2,以及通过该方法得到的产物。

    Seven-membered heterocyclic carbenes and their metal complexes
    3.
    发明授权
    Seven-membered heterocyclic carbenes and their metal complexes 有权
    七元杂环卡宾及其金属络合物

    公开(公告)号:US08163900B2

    公开(公告)日:2012-04-24

    申请号:US12784537

    申请日:2010-05-21

    IPC分类号: C07D487/00

    CPC分类号: C07D243/04 C07F15/006

    摘要: Disclosed are carbenes of the general formula: and including salts thereof, and metal complexes thereof. The carbenes are useful in any reaction where carbenes and carbene-metal complexes are used. The carbenes disclosed herein are particularly useful in asymmetric catalysis.

    摘要翻译: 公开的是具有以下通式的卡宾:并包括其盐及其金属络合物。 卡宾可用于使用卡宾和卡宾 - 金属配合物的任何反应。 本文公开的卡宾在非对称催化中特别有用。