18498-01-6

Basic information

• Product Name: [1,2-Bis(diphenyphosphino)ethane]dichlorocobalt(II)
• Synonyms: 1,2-Bis(diphenylphosphino)ethanedichlorocobalt(II),Min.97%;1,2-Bis(diphenylphosphino)ethanedichlorocobalt(II),97% (DPPE)CoCl2;Dichloro[ethylenebis[diphenylphosphine]]cobalt;[1,2-BIs(diphenylphosphino);ethane]dichlorocobalt(II);[1,2-BIS(DIPHENYLPHOSPHINO)ETHANE]DICHLOROCOBALT(II);(1,2-bis(diphenylphosphino)ethane)-dichlorocobalt;[1,2-Bis(diphenyphosphino)ethane]dichlorocobalt(II)
• CAS NO: 18498-01-6
• Molecular Formula: C₂₆H₂₄Cl₂CoP₂
• Molecular Weight: 528.26
• Product Categories: Co;API intermediates;Catalysis and Inorganic Chemistry;Chemical Synthesis;Cobalt;metal-phosphine complex
• Mol File: 18498-01-6.mol
• Article Data: 3

Chemical Properties

• Melting Point: 260 °C (dec.)(lit.)
• Boiling Point: 514.8 °C at 760 mmHg
• Flash Point: 281.7 °C
• Appearance: green/Powder
• Vapor Pressure: 3.38E-10mmHg at 25°C
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Water Solubility: Insoluble in water.
• Sensitive: Hygroscopic
• CAS DataBase Reference: [1,2-Bis(diphenyphosphino)ethane]dichlorocobalt(II)(CAS DataBase Reference)
• NIST Chemistry Reference: [1,2-Bis(diphenyphosphino)ethane]dichlorocobalt(II)(18498-01-6)
• EPA Substance Registry System: [1,2-Bis(diphenyphosphino)ethane]dichlorocobalt(II)(18498-01-6)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• Hazardous Substances Data: 18498-01-6(Hazardous Substances Data)

Usage

Reactions

Catalyst used for the hydrovinylation of styrene. Cobalt-catalyzed hydroalkylation of [60] fullerene with active alkyl bromides. Cobalt-catalyzed 1,4-addition of organoboronic acids to activated alkenes.

Uses

Dichloro[bis(1,2-diphenylphosphino)ethane]cobalt(II) is used as a catalyst for regio- and stereoselective intermolecular enzyme coupling, cross-coupling reactions of alkyl halides with aryl Grignard reagents, hydrovinylation of styrene, tandem radical cyclization and cross-coupling, dimethylation, hydrodechlorination and addition reactions.

InChI:InChI=1/C26H24P2.2ClH.Co/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26;;;/h1-20H,21-22H2;2*1H;/q;;;+2/p-2

Upstream product

• 1663-45-2 1,2-bis-(diphenylphosphino)ethane 
• 7646-79-9 cobalt(II) chloride 

Downstream Products

• 18433-72-2 (diphos)2CoH 

Relevant articles and documents

Homogeneous Electrochemical Reduction of CO2 to CO by a Cobalt Pyridine Thiolate Complex

The chemical and electrochemical reduction of CO2 to value added chemicals entails the development of efficient and selective catalysts. Synthesis, characterization and electrochemical CO2 reduction activity of a air-stable cobalt(III) diphenylphosphenethano-bis(2-pyridinethiolate)chloride [{Co(dppe)(2-PyS)2}Cl, 1-Cl] complex is divulged. The complex reduces CO2 under homogeneous electrocatalytic conditions to produce CO with high Faradaic efficiency (FE > 92%) and selectivity in the presence of water. Through detailed electrochemical investigations, product analysis, and mechanistic investigations supported by theoretical calculations, it is established that complex 1-Cl reduces CO2 in its Co(I) state. A reductive cleavage leads to a dangling protonated pyridine arm which enables facile CO2 binding through a H-bond donation and facilitates the C-O bond cleavage via a directed protonation. A systematic benchmarking of this catalyst indicates that it has a modest overpotential (～180 mV) and a TOF of ～20 s-1 for selective reduction of CO2 to CO with H2O as a proton source.

Cobalt-catalysed asymmetric hydrovinylation of 1,3-dienes

In the presence of bidentate 1,n-bis-diphenylphosphinoalkane-CoCl2 complexes {Cl2Co[P ～ P]} and Me3Al or methylaluminoxane, acyclic (E)-1,3-dienes react with ethylene (1 atmosphere) to give excellent yields of hydrovinylat