摘要长链膦的锰(II)配合物,MnX 2(膦)(THF)XCl,Br,I; 膦= P(C 12 H 25)3,P(C 14 H 29)3,P(C 16 H 33)3,PPh(C 12 H 25)2,PPh(C 14 H 29)2,PPh(C 16 H 33)2; 已经制备并表征了THF =四氢呋喃。这些络合物在固态以及在THF和甲苯溶液中均与分子氧可逆反应,形成1:1 Mn:O 2加合物。这些加合物在甲苯和THF中是单体,分子量测量结果证实THF配体在甲苯溶液中保持配位,导致形成MnX 2(膦)(THF)(O 2)物种。所有的O 2加合物都是高度着色的,已经绘制了结合曲线并计算了K o 2值。基于这些K o 2值,在甲苯溶液中对氧的亲和力为XCl> Br> I,希尔系数n表示合作性(1-1.5)。在THF中,双氧似乎没有协同作用。
Infrared spectra of some derivatives of octacarbonyldicobalt
作者:A. R. Manning
DOI:10.1039/j19680001135
日期:——
A number of cobalt carbonyl derivatives of the type [L Co(CO)3]2[L = Et3P, Bu3P, PhMe2P, PhEt2P, Ph3P, (MeO)3P, (PhO)3P, Et3As, or Ph3As] have been prepared, and their infraredspectra investigated in the range 225–4000 cm.–1. Absorption bands due to the vibrations of the Co2(CO)6 moiety have been identified and assigned where possible.
NOVEL STABLE AND HIGHLY TUNABLE METATHESIS CATALYSTS
申请人:Mauduit Marc
公开号:US20130197218A1
公开(公告)日:2013-08-01
The present invention relates to catalytically active compounds of the general formula (1) that are highly tunable, as well as to a method of their preparation and their use in any type metathesis reaction. The new compounds of the present invention comprise activation sites that allow for specific catalyst design. Particularly, side chains and ligands allow efficient activity and specificity control of the catalysts of the present invention.
Method for preparing aminoarylborane compounds or derivatives thereof
申请人:Université de Bordeaux I
公开号:EP2881398A1
公开(公告)日:2015-06-10
The present invention provides a process for the preparation of aminoarylborane compounds and derivatives thereof comprising a step of arylation by reacting an aryl chloride with an aminoborane compound in the presence of a catalytic system.
Typically, the transformation comprises, converting Aryl-chloride Ar-Cl with an aminoborane such as
into an aminoarylborane compound of the following formula:
3(4),7(8)-Bis(aminomethyl)bicyclo[4.3.0]nonane and a process for its preparation
申请人:Springer Helmut
公开号:US20070179319A1
公开(公告)日:2007-08-02
3(4),7(8)-bis(aminomethyl)bicyclo[4.3.0]nonane and a process for its preparation, wherein bicyclo[4.3.0]nona-3,7-diene is reacted with synthesis gas in a homogeneous organic phase in the presence of transition metal compounds of Group VIII of the Periodic Table containing complex-bound organophosphorus compounds, and excess organophosphorus compound, at temperatures of 70 to 160° C. and pressures of 5 to 35 MPa, and the 3(4),7(8)-bisformylbicyclo[4.3.0]nonane thus obtained is reductively aminated.
Bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and a process for its preparation
申请人:Springer Helmut
公开号:US20070179314A1
公开(公告)日:2007-08-02
The compound, bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and to a process for its preparation, wherein bicyclo[4.3.0]nona-3,7-diene is reacted with synthesis gas in an homogeneous organic phase in the presence of transition metal compounds of Group VIII of the Periodic Table containing complex-bound organophosphorus compounds, and of excess organophosphorus compound, at temperatures of 70 to 160° C. and pressures of 5 to 35 MPa, and the 3(4),7(8)-bisformylbicyclo[4.3.0]nonane thus obtained is oxidized, or is first hydrogenated to 3(4),7(8)-dihydroxymethylbicyclo[4.3.0]nonane and the diol thus obtained is reacted in an alkali melt.