111795-43-8
(R)-(+)-3,3-Dibromo-1,1-bi-2-naphtol
CAS: 111795-43-8
Molecular Formula: C20H12Br2O2
111795-43-8 - Names and Identifiers
111795-43-8 - Physico-chemical Properties
| Molecular Formula | C20H12Br2O2 |
| Molar Mass | 444.12 |
| Density | 1.761±0.06 g/cm3(Predicted) |
| Melting Point | 256-260°C |
| Boling Point | 469.9±40.0 °C(Predicted) |
| Specific Rotation(α) | +43° (c 0.22, CHCl3) |
| Flash Point | 238.012°C |
| Solubility | within almost transparency in Methanol |
| Vapor Presure | 0mmHg at 25°C |
| Appearance | White to brown powder or crystalline or lumpy |
| Color | White to pale yellow-beige |
| pKa | 6.43±0.50(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.779 |
| MDL | MFCD03093629 |
111795-43-8 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| HS Code | 29081990 |
111795-43-8 - Introduction
(R)-(+)-3,3 '-dibromo-1, 1'-bis-2-naphthol, abbreviated as (R)-BINOL, is an organic compound. It has the following properties:
1. Appearance:(R)-BINOL exists in the form of white to pale yellow crystals.
2. Solubility: It has low solubility in non-polar solvents (such as alkanes) and high solubility in polar solvents (such as alcohols or ketones).
3. melting point: about 105-110 degrees Celsius.
(R)-BINOL is widely used in the field of organic synthesis, mainly for asymmetric synthesis reactions, such as the synthesis of chiral catalysts. It has good chiral induction properties and can be used as a catalyst for asymmetric oxidation, reduction and substitution reactions. For example, it can catalyze the synthesis of asymmetric ring compounds.
There are many ways to prepare (R)-BINOL, one of which is commonly used by reacting naphthalene with hydrogen bromide and then reducing it.
Regarding safety information, the following should be noted when storing and using (R)-BINOL:
1. Because (R)-BINOL is an organic compound, keep it away from fire sources and maintain a well-ventilated environment during storage and operation.
2. When carrying and operating (R)-BINOL, wear appropriate personal protective equipment, such as lab gloves, goggles and lab clothes.
3. Avoid direct contact of (R)-BINOL with skin, eyes and mouth.
4. In case of accidental exposure to (R)-BINOL, immediately rinse the eyes or skin with clean water and seek medical attention immediately.
5. When disposing of (R)-BINOL waste, it should be disposed in accordance with local environmental regulations.
When using (R)-BINOL for experiments, follow relevant safety procedures and follow the guidelines for the safe use and handling of chemicals.
1. Appearance:(R)-BINOL exists in the form of white to pale yellow crystals.
2. Solubility: It has low solubility in non-polar solvents (such as alkanes) and high solubility in polar solvents (such as alcohols or ketones).
3. melting point: about 105-110 degrees Celsius.
(R)-BINOL is widely used in the field of organic synthesis, mainly for asymmetric synthesis reactions, such as the synthesis of chiral catalysts. It has good chiral induction properties and can be used as a catalyst for asymmetric oxidation, reduction and substitution reactions. For example, it can catalyze the synthesis of asymmetric ring compounds.
There are many ways to prepare (R)-BINOL, one of which is commonly used by reacting naphthalene with hydrogen bromide and then reducing it.
Regarding safety information, the following should be noted when storing and using (R)-BINOL:
1. Because (R)-BINOL is an organic compound, keep it away from fire sources and maintain a well-ventilated environment during storage and operation.
2. When carrying and operating (R)-BINOL, wear appropriate personal protective equipment, such as lab gloves, goggles and lab clothes.
3. Avoid direct contact of (R)-BINOL with skin, eyes and mouth.
4. In case of accidental exposure to (R)-BINOL, immediately rinse the eyes or skin with clean water and seek medical attention immediately.
5. When disposing of (R)-BINOL waste, it should be disposed in accordance with local environmental regulations.
When using (R)-BINOL for experiments, follow relevant safety procedures and follow the guidelines for the safe use and handling of chemicals.
Last Update：2024-04-09 21:21:28
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