Organic material for non-linear optics
    3.
    发明授权
    Organic material for non-linear optics 失效
    有机材料用于非线性光学

    公开(公告)号:US5321791A

    公开(公告)日:1994-06-14

    申请号:US908825

    申请日:1992-07-01

    IPC分类号: G02F1/361 G02F1/35

    CPC分类号: G02F1/3611

    摘要: An organic material for non-linear optics, in which the structure of the molecule includes an electron donor group and an electron attractor group connected by means of an electron-transmitting group, the material being characterized by the fact that it satisfies the formula: ##STR1## where R is selected from (CH.sub.3).sub.2 N and CH.sub.3 O, with the first material being dimethylamino 4, cyano 4' biphenyl and the second being methoxy 4, cyano 4' biphenyl.

    摘要翻译: 一种用于非线性光学的有机材料,其中分子的结构包括电子给体基团和通过电子传递基团连接的吸电子基团,该材料的特征在于其满足下式: 其中R选自(CH 3)2 N和CH 3 O,第一种是二甲基氨基4,氰基4'-联苯,第二种是甲氧基4,氰基4'-联苯。

    OXIDATIVE CARBONYLATION OF PRIMARY AMINES TO ISOCYCANATES CATALYZED BY GROUP X DIVALENT NOBLE METAL COMPOUNDS OR COMPLEXES
    4.
    发明申请
    OXIDATIVE CARBONYLATION OF PRIMARY AMINES TO ISOCYCANATES CATALYZED BY GROUP X DIVALENT NOBLE METAL COMPOUNDS OR COMPLEXES 审中-公开
    主要氨基氧化成由X族金属化合物或复合物催化的异氰酸酯的氧化羰基化

    公开(公告)号:US20150353481A1

    公开(公告)日:2015-12-10

    申请号:US14732047

    申请日:2015-06-05

    IPC分类号: C07C263/00

    摘要: Processes for the preparation of monoisocyanates, diisocyanates or polyisocyanates of the present invention are described which comprises reacting monomeric or oligomeric primary amines or diamines, and carbon monoxide at atmospheric pressure in the presence of a catalytic amount of a compound or a complex of a divalent metal selected from palladium, nickel and platinum, and in the presence of stoichiometric or catalytic quantities of benzoquinone as an oxidant. Isocyanates are produced in high yields and purities. They can be isolated as free isocyanates or as blocked isocyanates by in situ reaction with blocking agents that contain an active hydrogen being attached to oxygen, sulfur or nitrogen. Monoisocyanates and diisocyanates serve as chemical, agricultural or pharmaceutical intermediates. Diisocyanates and polyisocyanates are used to produce polyurethanes, polyureas, polyisocyanurates and related polymers.

    摘要翻译: 描述了制备本发明的单异氰酸酯,二异氰酸酯或多异氰酸酯的方法,其包括在大气压下,在催化量的化合物或二价金属络合物的存在下使单体或低聚伯胺或二胺与一氧化碳反应 选自钯,镍和铂,并且在化学计量或催化量的苯醌作为氧化剂的存在下。 异氰酸酯以高产率和纯度生产。 它们可以作为游离异氰酸酯或作为封闭的异氰酸酯被分离,通过与包含与氧,硫或氮连接的活性氢的封闭剂进行原位反应。 单异氰酸酯和二异氰酸酯用作化学,农业或医药中间体。 二异氰酸酯和多异氰酸酯用于生产聚氨酯,聚脲,聚异氰脲酸酯和相关聚合物。