专利号:US-12331007-B2 优先权日:2021-10-15 标题 :Use of a multidentate phosphite ligand in the catalytic synthesis of adiponitrile 发明人:CHEN ZHIRONG; WU WENBIN; YIN HONG; ZHA ZENGSHI; WANG KEYAN; MA LI; HUANG GUODONG; ZHOU GUIYANG; XU YONG 权利人:ZHEJIANG NHU CO LTD; ZHEJIANG NHU SPECIAL MAT CO LTD; ZHEJIANG NHU NYLON MAT CO LTD 摘要:A multidentate phosphite ligand is used in the catalytic synthesis of adiponitrile. The ligand is represented by the following general formula (I). The method of catalytic synthesis of adiponitrile comprises primary hydrocyanation, isomerization, and secondary hydrocyanation reactions, wherein the catalyst adopted each comprises a phosphite ligand-nickel complex composed of a nickel precursor and a multidentate phosphite ligand. The ligand molecule has a higher electron cloud density, and the phosphorus content capable of participating in coordination in the ligand molecule per unit mass is higher, so that the catalytic activity of the catalyst is improved, and the amount of the catalyst is reduced.
专利号:US-8697902-B2 优先权日:2008-06-17 标 题:Preparation of nitriles from ethylenically unsaturated compounds 发明人:MASTROIANNI SERGIO 权利人:MASTROIANNI SERGIO; RHODIA OPERATIONS 摘要:A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a compound of formula (I): n n n n n n n n n n The subject process is particularly useful for the synthesis of adiponitrile from butadiene.
专利号:US-7470805-B2 优先权日:2002-12-23 标题:Process of synthesis of compounds having nitrile functions from ethylenically unsaturated compounds 发明人:ROSIER CECILE; MARION PHILIPPE; BOURGEOIS DAMIEN 权利人:RHODIA OPERATIONS 摘要:A process of hydrocyanation of diolefins such as butadiene is carried out in the presence of a catalytic system comprising a transition metal and mono- and pluri-dentate organophosphorus ligands. The reaction medium containing branched nitrites subsequently is isomerized in the absence of hydrogen cyanide.
专利号:US-8039660-B2 优先权日:2001-09-18 标 题:Method of producing nitrile compounds 发明人:BASSET JEAN-MARIE; CHAUVIN YVES; GALLAND JEAN-CHRISTOPHE; NICCOLAI GERALD; VALERIO CHRISTINE; VALLEE CHRISTOPHE 权利人:RHODIA POLYAMIDE INTERMEDIATES 摘要:The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ε-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.
专利号:US-3631191-A 优先权日:1970-04-08 标 题 :Synthesis of zero valent nickel-tetrakis triaryl phosphite complexes 发明人:KANE NEAL JAMES; BROCKWAY JOHN 权利人:DU PONT 摘要:THE PROCESS FOR PREPARING A ZERO VALENT NICKELPHOSPHITE COMPLEX BY REACTING A DIVALENT NICKEL COMPOUND WITH A REDUCING METAL IN THE PRESENCE OF A TRIARYL PHOSPHITE IN A SATURATED ALIPHATIC DINITRILE SOLVENT. THE REACTION MIXTURE SEPARATES INTO MULTIPLE PHASES, ONE OF WHICH CONTAINS THE DESIRED COMPLEX SUBSTANTIALLY FREE OF BY-PRODUCT AND ANOTHER PHASE CONTAINING THE BY-PRODUCT OF THE REDUCING ACTION.
专利号:US-9233917-B2 优先权日:2008-06-17 标题:Preparation of nitriles from ethylenically unsaturated compounds 发明人:MASTROIANNI SERGIO 权利人:MASTROIANNI SERGIO; INVISTA NORTH AMERICA SARL 摘要:A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a mixture of at least one monodentate organophosphite compound and at least one monodentate organophosphine compound; the subject process is especially useful for the synthesis of adiponitrile from butadiene.
摘要:Tauchert, M. E., Science of Synthesis: C-1 Building Blocks in Organic Synthesis, (2013) 1, 318. 摘要:Tauchert, M. E., Science of Synthesis: C-1 Building Blocks in Organic Synthesis, (2013) 1, 322. 摘要:Tauchert, M. E., Science of Synthesis: C-1 Building Blocks in Organic Synthesis, (2013) 1, 309. 参考文献:10.1021/ja8000216 摘要:Swartz BD, Reinartz NM, Brennessel WW, García JJ, Jones WD. Solvent effects and activation parameters in the competitive cleavage of C-CN and C-H bonds in 2-methyl-3-butenenitrile using [(dippe)NiH]2. J Am Chem Soc. 2008 Jul 02;130(26):8548–54. doi: 10.1021/ja8000216.