申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US20190185420A1
公开(公告)日:2019-06-20
A method of production of carbamic acid ester has a high yield and high selectivity and is superior in economy. The method of production of a carbamic acid ester includes reacting an amine, carbon dioxide, and an alkoxysilane compound in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. A carbamic acid ester is produced, for example by reacting aniline, carbon dioxide, and tetramethoxysilane at a temperature of 150 to 180° C. in the presence of zinc acetate and 2,2′-bipyridine.
申请人:National Institute of Advanced Industrial Science
and Technology
公开号:EP3508473A1
公开(公告)日:2019-07-10
A method of production of carbamic acid ester has a high yield and high selectivity and is superior in economy. The method of production of a carbamic acid ester includes reacting an amine, carbon dioxide, and an alkoxysilane compound in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. A carbamic acid ester is produced, for example by reacting aniline, carbon dioxide, and tetramethoxysilane at a temperature of 150 to 180°C in the presence of zinc acetate and 2,2'-bipyridine.
申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US10752579B2
公开(公告)日:2020-08-25
A method of production of carbamic acid ester has a high yield and high selectivity and is superior in economy. The method of production of a carbamic acid ester includes reacting an amine, carbon dioxide, and an alkoxysilane compound in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. A carbamic acid ester is produced, for example by reacting aniline, carbon dioxide, and tetramethoxysilane at a temperature of 150 to 180° C. in the presence of zinc acetate and 2,2′-bipyridine.
Efficient preparation of carbamates by Rh-catalysed oxidative carbonylation: unveiling the role of the oxidant
作者:Amaia Iturmendi、Manuel Iglesias、Julen Munárriz、Victor Polo、Jesús J. Pérez-Torrente、Luis A. Oro
DOI:10.1039/c6cc09133d
日期:——
The synthesis of a broad variety of carbamates from amines, alcohols and carbon monoxide has been achieved by means of a Rh-catalysed oxidative carbonylation reaction that uses Oxone as stoichiometric...
Highly efficient hydrogenation of carbamates catalyzed by pincer ruthenium complexes
作者:Zheng Wang、Xiuli Yan、Ning Ma、Song Liu、Peng Han、Huiliang Li、Qaiser Mahmood、Libin Li、Qingbin Liu
DOI:10.1016/j.jcat.2023.115165
日期:2023.12
The [fac-PNN]RuH(PPh3)(CO) complex (Ru1) has been identified as a highlyefficient catalyst for the hydrogenation of a broad spectrum of arylcarbamates and their derivatives (49 examples). The hydrogenation reaction occurs smoothly via CN bond cleavage, affording the desired amines and alcohols or diols at a low catalyst loading of 0.25 mol% in tert-amyl alcohol. Most importantly, this catalytic system