255836-67-0
2-(Di-tert-butylphosphino)-1,1'-binaphthyl
CAS: 255836-67-0
Molecular Formula: C28H31P
255836-67-0 - Names and Identifiers
| Name | 2-(Di-tert-butylphosphino)-1,1'-binaphthyl |
| Synonyms | 2-(DI-TERT-BUTYLPHOSPHINO)-1,1'-BINAPHTHYL 2-(Di-tert-butylphosphino)-1,1'-binaphthyl Rac-2-(Di-t-butylphosphino)-1,1'-binaphthy RAC-2-(DI-T-BUTYLPHOSPHINO)-1,1'-BINAPHTHYL racemic-2-Di-t-butylphosphino-1,1'-binaphthy RaceMic-2-di-tert-butylphosphino-1,1-binaphthyl RACEMIC-2-(DI-T-BUTYLPHOSPHINO)-1,1'-BINAPHTHYL PHOSPHINE, [1,1''-BINAPHTHALEN]-2-YLBIS(1,1-DIMETHYLETHYL)- |
| CAS | 255836-67-0 |
| InChI | InChI:1S/C28H31P/c1-27(2,3)29(28(4,5)6)25-19-18-21-13-8-10-16-23(21)26(25)24-17-11-14-20-12-7-9-15-22(20)24/h7-19H,1-6H3 |
| InChIKey | QGBQGMHXBSLYLZ-UHFFFAOYSA-N |
255836-67-0 - Physico-chemical Properties
| Molecular Formula | C28H31P |
| Molar Mass | 398.52 |
| Melting Point | 144-148 °C |
| Boling Point | 519.5±29.0 °C(Predicted) |
| Appearance | crystal |
| Color | white |
| Storage Condition | 2-8℃ |
| MDL | MFCD03094576 |
255836-67-0 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, 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. |
| WGK Germany | 3 |
| TSCA | No |
| HS Code | 29029090 |
255836-67-0 - Introduction
2-(Di-tert-butylphosphino)-1,1 '-binaphthyl (scientific name: 2-(Di-tert-butylphosphino)-1,1'-binaphthyl, abbreviated as DTBP-BINAP) is an organophosphorus compound. The following is a description of the nature, use, preparation and safety information of the DTBP-BINAP:
Nature:
-Appearance: The DTBP-BINAP is a white or white-like crystalline powder solid.
-Melting point: About 180-185 ° C.
-Solubility: DTBP-BINAP is soluble in many common organic solvents, such as dimethyl sulfoxide, dimethylformamide and chloroform.
Use:
-Catalyst: DTBP-BINAP are widely used in metal-catalyzed reactions, especially chiral catalytic reactions, such as asymmetric hydrogenation, asymmetric alkylation, asymmetric epoxidation and other reactions.
-Chiral ligand: As a chiral ligand, DTBP-BINAP can form a stable complex with transition metal complexes for the synthesis of compounds with high optical purity.
Method:
The preparation of DTBP-BINAP can be carried out by the following steps:
1.2-bromo-1,1 '-binaphthyl (2-bromo-1,1'-binaphthyl) was reacted with di-tert-butyl phosphine (di-tert-butylphosphine) to give 2-(Di-tert-butylphosphino)-1, bromide of 1 '-binaphthyl;
2. The reduction reaction is then carried out, usually using a reducing agent such as sodium tetraphenyl sulfoxide (NaSPh) or methanol Alane (AlMe3) to reduce the brominated substance to DTBP-BINAP.
Safety Information:
The safe operation of the DTBP-BINAP should pay attention to the following points:
-Closed operation: Try to avoid contact with DTBP-BINAP powder during operation.
-Fire and explosion-proof: DTBP-BINAP have certain fire and explosion hazards, avoid contact with combustibles and keep away from open flames and high temperatures.
-Storage conditions: DTBP-BINAP should be stored in a dry, well-ventilated place, away from oxidants and ignition sources.
Nature:
-Appearance: The DTBP-BINAP is a white or white-like crystalline powder solid.
-Melting point: About 180-185 ° C.
-Solubility: DTBP-BINAP is soluble in many common organic solvents, such as dimethyl sulfoxide, dimethylformamide and chloroform.
Use:
-Catalyst: DTBP-BINAP are widely used in metal-catalyzed reactions, especially chiral catalytic reactions, such as asymmetric hydrogenation, asymmetric alkylation, asymmetric epoxidation and other reactions.
-Chiral ligand: As a chiral ligand, DTBP-BINAP can form a stable complex with transition metal complexes for the synthesis of compounds with high optical purity.
Method:
The preparation of DTBP-BINAP can be carried out by the following steps:
1.2-bromo-1,1 '-binaphthyl (2-bromo-1,1'-binaphthyl) was reacted with di-tert-butyl phosphine (di-tert-butylphosphine) to give 2-(Di-tert-butylphosphino)-1, bromide of 1 '-binaphthyl;
2. The reduction reaction is then carried out, usually using a reducing agent such as sodium tetraphenyl sulfoxide (NaSPh) or methanol Alane (AlMe3) to reduce the brominated substance to DTBP-BINAP.
Safety Information:
The safe operation of the DTBP-BINAP should pay attention to the following points:
-Closed operation: Try to avoid contact with DTBP-BINAP powder during operation.
-Fire and explosion-proof: DTBP-BINAP have certain fire and explosion hazards, avoid contact with combustibles and keep away from open flames and high temperatures.
-Storage conditions: DTBP-BINAP should be stored in a dry, well-ventilated place, away from oxidants and ignition sources.
Last Update：2024-04-09 21:54:55
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CAS: 255836-67-0
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CAS: 255836-67-0
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