Ethylenebis(dicyclohexylphosphine)
1,2-Bis(dicyclohexylphosphino)ethane
CAS: 23743-26-2
Molecular Formula: C26H48P2
Ethylenebis(dicyclohexylphosphine) - Names and Identifiers
| Name | 1,2-Bis(dicyclohexylphosphino)ethane |
| Synonyms | dcype Ethylenebis(dicyclohexylphosphine) Ethylenebis(biscyclohexylphosphine) 1,2-BIS(DICYCLOHEXYLPHOSPHINO)ETHANE 1,2-Bis(dicyclohexylphosphino)ethane 1,2-Ethanediylbis(dicyclohexylphosphine) ethane-1,2-diylbis(dicyclohexylphosphane) phosphine, 1,1'-(1,2-ethanediyl)bis[1,1-dicyclohexyl- |
| CAS | 23743-26-2 |
| InChI | InChI=1/C26H48P2/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/h23-26H,1-22H2 |
| InChIKey | BOUYBUIVMHNXQB-UHFFFAOYSA-N |
Ethylenebis(dicyclohexylphosphine) - Physico-chemical Properties
| Molecular Formula | C26H48P2 |
| Molar Mass | 422.62 |
| Melting Point | 92.5-96.5°C(lit.) |
| Boling Point | 528.3±20.0 °C(Predicted) |
| Flash Point | 110°C |
| Vapor Presure | 1.02E-10mmHg at 25°C |
| Appearance | Powder |
| Color | White |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Air Sensitive |
Ethylenebis(dicyclohexylphosphine) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R53 - May cause long-term adverse effects in the aquatic environment R41 - Risk of serious damage to eyes R37/38 - Irritating to respiratory system and skin. |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| UN IDs | UN1325 |
| WGK Germany | 3 |
| HS Code | 29310099 |
| Hazard Class | 4.1 |
| Packing Group | II |
Ethylenebis(dicyclohexylphosphine) - Introduction
1,2-bis (dicyclohexylphosphino)ethane is an organophosphorus compound commonly abbreviated as dcpe. Its chemical formula is C26H48P2 and its molecular weight is 408.6g/mol. The following is a description of its nature, use, preparation and safety information:
Nature:
1,2-bis (dicyclohexylphosphino)ethane is a colorless to pale yellow solid. It has low solubility at room temperature and is easily soluble in organic solvents such as ether, dichloromethane and benzene. This compound is stable in air, but Burns when heated.
Use:
1,2-bis (dicyclohexylphosphino)ethane is an important complexing reagent commonly used in organic synthesis and synergistic catalytic reactions. It can form complexes with transition metals, which have the effect of providing coordination sites and stabilizing low oxygen metal. The compound is widely used in catalytic hydrogenation reaction, olefin carbonylation reaction and coupling reaction.
Method:
1,2-bis (dicyclohexylphosphino)ethane can be synthesized:
In ethanol or ether, 2,2-dicyclohexyl -1,3-dioxocyclohexanenitrile is reacted with thionyl chloride to generate 2,2-dicyclohexyl -1,3-dioxocyclohexyl sulfate. Then, by reaction with thionyl chloride and triphenylphosphine, 1,2-bis (dicyclohexylphosphino)ethane is obtained under the catalysis of a base.
Safety Information:
1,2-bis (dicyclohexylphosphino)ethane's impact on human health has not been fully studied, so it is necessary to pay attention to compliance with relevant safety operating procedures when using it. Due to its flammability, contact with open flames and high temperature heat sources should be avoided. Maintain good ventilation and use appropriate protective equipment such as gloves and goggles when handling the compound. In the case of accidental contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
Nature:
1,2-bis (dicyclohexylphosphino)ethane is a colorless to pale yellow solid. It has low solubility at room temperature and is easily soluble in organic solvents such as ether, dichloromethane and benzene. This compound is stable in air, but Burns when heated.
Use:
1,2-bis (dicyclohexylphosphino)ethane is an important complexing reagent commonly used in organic synthesis and synergistic catalytic reactions. It can form complexes with transition metals, which have the effect of providing coordination sites and stabilizing low oxygen metal. The compound is widely used in catalytic hydrogenation reaction, olefin carbonylation reaction and coupling reaction.
Method:
1,2-bis (dicyclohexylphosphino)ethane can be synthesized:
In ethanol or ether, 2,2-dicyclohexyl -1,3-dioxocyclohexanenitrile is reacted with thionyl chloride to generate 2,2-dicyclohexyl -1,3-dioxocyclohexyl sulfate. Then, by reaction with thionyl chloride and triphenylphosphine, 1,2-bis (dicyclohexylphosphino)ethane is obtained under the catalysis of a base.
Safety Information:
1,2-bis (dicyclohexylphosphino)ethane's impact on human health has not been fully studied, so it is necessary to pay attention to compliance with relevant safety operating procedures when using it. Due to its flammability, contact with open flames and high temperature heat sources should be avoided. Maintain good ventilation and use appropriate protective equipment such as gloves and goggles when handling the compound. In the case of accidental contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
Last Update：2024-04-10 22:29:15
