super-hydride (lithium triethylboro-hydride
Lithium triethylborohydride
CAS: 22560-16-3
Molecular Formula: C6H13BLi
super-hydride (lithium triethylboro-hydride - Names and Identifiers
super-hydride (lithium triethylboro-hydride - Physico-chemical Properties
| Molecular Formula | C6H13BLi |
| Molar Mass | 102.92 |
| Density | 0.892g/mLat 25°C |
| Melting Point | 66-67° (Binger); mp 78-83° (dec) (Brown, 1977) |
| Flash Point | 1°F |
| Solubility | Miscible with tetrahydrofuran and benzene. |
| Appearance | Liquid |
| Color | Colorless to light gray |
| Exposure Limit | ACGIH: TWA 50 ppm; STEL 100 ppm (Skin)OSHA: TWA 200 ppm(590 mg/m3)NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3) |
| Merck | 14,5544 |
| BRN | 4151240 |
| Storage Condition | Flammables + water-Freezer (-20°C)e area |
| Sensitive | Air & Moisture Sensitive |
super-hydride (lithium triethylboro-hydride - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14/15 - R19 - May form explosive peroxides R34 - Causes burns R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33 - Take precautionary measures against static discharges. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3399 4.3/PG 1 |
| WGK Germany | 1 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29319090 |
| Hazard Class | 4.3 |
| Packing Group | I |
super-hydride (lithium triethylboro-hydride - Reference Information
| reducibility | lithium triethylborohydride (LiBHEt3) is a hydrogen source with very strong nucleophilicity. commercially available lithium triethylborohydride is marked with Super-Hydride. It is used in the reduction reaction of halides and sulfonyl compounds. |
| Use | Alkynyl alcohol produced by cleavage of cyclic ketone vinyl triflate. |
| production method | 1. in a 200 ml autoclave, 4.7 grams (0.59 moles) of lithium hydride and 102 grams (1.04 moles) of triethylboron are placed, and heated to about 200 atmospheres for 4 hours under shaking. After cooling, the gas (86% ethane, 4% ethylene and 10% hydrogen) is released, the solid is extracted with hot benzene, filtered, removed lithium hydride and concentrated to obtain 58 grams (93%) of colorless crystals. |
Last Update：2024-04-10 22:29:15
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