Bis(Tricyclohexylphosphine) Benzylidine Ruthenium(Iv) Chloride
Benzylidene-bis(tricyclohexylphosphine)dichlororuthenium
CAS: 172222-30-9
Molecular Formula: C43H73Cl2P2Ru
Bis(Tricyclohexylphosphine) Benzylidine Ruthenium(Iv) Chloride - Names and Identifiers
Bis(Tricyclohexylphosphine) Benzylidine Ruthenium(Iv) Chloride - Physico-chemical Properties
| Molecular Formula | C43H73Cl2P2Ru |
| Molar Mass | 823.96 |
| Melting Point | 153°C (dec.)(lit.) |
| Boling Point | 383.4°C at 760 mmHg |
| Flash Point | 195.6°C |
| Vapor Presure | 9.7E-06mmHg at 25°C |
| Appearance | Purple solid |
| Merck | 13,4565 |
| Storage Condition | 2-8°C |
| Sensitive | `sensitive` to air and light |
| MDL | MFCD01090946 |
| Physical and Chemical Properties | Storage Conditions: 2-8 ℃ WGK Germany:3 |
| Use | Displace catalyst. |
Bis(Tricyclohexylphosphine) Benzylidine Ruthenium(Iv) Chloride - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R11 - Highly Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 1325 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 28439000 |
| Hazard Class | 4.1 |
| Packing Group | Ⅱ |
Bis(Tricyclohexylphosphine) Benzylidine Ruthenium(Iv) Chloride - Reference Information
| Introduction | Phenylmethylene bis (tricyclohexyl phosphorus) ruthenium dichloride is a ruthenium catalyst. Ruthenium catalyst has strong resistance to polar monomers, which can make many polar monomers polymerize to prepare cycloolefin copolymers. Cycloolefin copolymers can be widely used in the manufacture of various optical, information, electrical and medical materials. |
| Application | Phenylmethylene bis (tricyclohexylphosphorus) ruthenium dichloride can be widely used in organic synthesis, the first metathesis catalyst; Under a wide range of reaction conditions, it is effectively used for the ring-opening metathesis polymerization of end olefins, the cross-metathesis and closed-loop metathesis units of olefins, and the vinyl alcohol decomposition reaction of internal olefins. Phenylmethylene bis (tricyclohexylphosphorus) ruthenium dichloride is a new type of arylnitryl-ruthenium complex (arylalkylidene-rutheniumcomplexes), which can be used as a catalyst in metathesis reactions. |
| preparation | phenylmethylene bis (tricyclohexyl phosphorus) ruthenium dichloride is prepared as follows: 1) 4.96 grams of benzaldehyde-p-methylbenzenesulfonyl hydrazone, 1.75 grams of sodium methoxide and 40mL of diethylene glycol are added to a 100mL single-mouth bottle, and the single-mouth bottle is placed in a water bath at 60 ℃ for 1 hour. After the synthesis reaction is completed, the methanol in the obtained synthesis reaction solution is extracted with a water pump to obtain a synthesis reaction product; the synthesis reaction product is extracted with n-pentane in ice water and then extracted with a saturated NaCl aqueous solution, and the obtained extraction product is spin-dried to obtain phenyl diazomethane; the yield of the phenyl diazomethane is 50%. 2) Add 4.0 grams of dichloro-tris (triphenylphosphine) ruthenium to a 250mL branch bottle, introduce nitrogen to replace the air in the branch bottle, and inject 40mL of dichloromethane subjected to three times of liquid nitrogen freezing-melting treatment into the branch bottle; place the branch bottle in a cold bath at -78°C, under the condition of stirring, 10mL of pentane solution of phenyl diazomethane with a mass concentration of 98.5 mg/mL at -50 ℃ is added and mixed, and the phenyl diazomethane in the pentane solution of phenyl diazomethane is the phenyl diazomethane obtained by the above preparation; After stirring the obtained mixture at -70 ℃ for 10min, 40mL of dichloromethane solution of tricyclohexylphosphine with a mass concentration of 0.064 g/mL at -50 ℃ is added, the reaction was carried out at 25°C for 30min. After the reaction is over, the obtained reaction solution is filtered to remove insoluble substances, the filtered reaction solution is concentrated to 10mL and then filtered again, and 100mL of methanol treated by three times of liquid nitrogen freezing-thawing is added to the obtained filtered product for precipitation. The obtained precipitate is first washed with methanol three times, then washed with acetone twice, and the washed precipitate is vacuum dried for 3 hours, get 2.1g of product. The yield of the product prepared by the method provided in Example 2 of the present invention is 81%. The obtained product was detected by nuclear magnetic resonance hydrogen spectrum and phosphorus spectrum, and the detection result was that the obtained product was phenylmethylene bis (tricyclohexyl phosphorus) ruthenium dichloride. |
| use | replace catalyst. It is widely used in organic synthesis, the first metathesis catalyst; under a wide range of reaction conditions, it is effectively used for the tension ring-opening metathesis polymerization of end olefins, olefin cross-metathesis and closed-loop metathesis units, and The vinyl alcohol decomposition reaction of internal olefins |
Last Update：2024-04-10 22:29:15
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CAS: 172222-30-9
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