192373-35-6

Upstream product

• 123335-02-4 bis-(2-bromophenyl)methanol 
• 61592-89-0 2,2’-dibromodiphenylmethane 
• 1079-66-9 chloro-diphenylphosphine 
• 583-55-1 1-Bromo-2-iodobenzene 
• 6630-33-7 ortho-bromobenzaldehyde 

Downstream Products

• 192373-38-9 NiCl₂(CH₂(C₆H₄P(C₆H₅)2)2) 
• 192373-52-7 Fe(CH₂(C₆H₄P(C₆H₅)2)2)(CO)3 
• 192373-47-0 Ni(CH₂(C₆H₄P(C₆H₅)2)2)(C₂H₄) 
• 192373-40-3 NiBr₂(CH₂(C₆H₄P(C₆H₅)2)2) 
• 192373-41-4 PdCl₂(CH₂(C₆H₄P(C₆H₅)2)2) 
• 192373-42-5 PtCl₂(CH₂(C₆H₄P(C₆H₅)2)2) 
• 1616726-75-0 C₄₃H₄₈FeP₄ 

Relevant academic research and scientific papers

Synthesis and reactivity of a PCcarbeneP cobalt(i) complex: The missing link in the cobalt PXP pincer series (X = B, C, N)

We report the first example of a cobalt PCcarbeneP pincer complex (1) featuring a central alkylidene carbon donor accessed through the dehydration of an alcoholic POP proligand. Complex 1 shares bonding similarities with cobalt PBP and PNP pincer complexes where the donor atom engages in π-bonding with the cobalt centre, and thus completes the PXP (X = B, C, N) pincer ligand series for cobalt (for X donors that partake in M-L π-bonding). As compared to PBP and PNP pincer complexes, which are known to be good hydride and proton acceptors (respectively), complex 1 is found to be an effective hydrogen atom acceptor. Complex 1 partakes in cooperative ligand reactivity, engaging in several small molecule activations with styrene, bromine, carbon disulphide, phenyl acetylene, acetonitrile, hydrogen, benzaldehyde and water (through microreversibility). The mechanism for the formation of complex 1 is studied through the isolation and computational analysis of key intermediates. The formation of 1 is found to avoid C-H activation of the proligand, and instead proceeds through a combination of O-H activation, hydrogen atom transfer, β-hydride elimination and hydrogen activation processes.

Method for preparing organic carboxylic ester through combined catalysis of aryl bidentate phosphine ligand

The invention discloses a method for preparing organic carboxylic ester by combined catalysis of an aryl bidentate phosphine ligand. The method comprises the following steps: under the action of a palladium compound/aryl bidentate phosphine ligand/acidic additive combined catalyst, carrying out a hydrogen esterification reaction on terminal olefin, carbon monoxide and alcohol so as to generate theorganic carboxylic ester with one more carbon than olefin. According to the invention, by adoption of the palladium compound/aryl bidentate phosphine ligand/acidic additive combined catalyst, good catalytic activity and selectivity for the hydrogen esterification reaction of the olefin are achieved, and olefin carbonylation to synthesize organic carboxylic ester can be efficiently catalyzed. Thearyl bidentate phosphine ligand has a rigid skeleton structure of a rigid ligand and the flexibility of a flexible ligand, so the aryl bidentate phosphine ligand has proper flexibility due to the characteristic that the aryl bidentate phosphine ligand is soft and rigid, and a most favorable coordination mode and a stable active structure in space are favorably formed. In addition, the aryl bidentate phosphine ligand has the advantages of high stability, simple and convenient synthesis method and the like; and a novel industrial technology is provided for production of organic carboxylate compounds.