Lithium tert-butoxide
ALDRICH/400173 - 97%
Synonym: LiOtBu
CAS Number: 1907-33-1
Empirical Formula (Hill Notation): C4H9LiO
Molecular Weight: 80.05
EC Number: 217-611-5
MDL Number: MFCD00050479
Linear Formula: (CH3)3COLi
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 400173-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 400173-25G
| assay | 97% |
| bp | 110 °C/at 0.1333 hPa |
| density | 0,897 g/cm3 |
| form | powder and chunks |
| InChI | 1S/C4H9O.Li/c1-4(2,3)5;/h |
| InChI key | LZWQNOHZMQIFBX-UHFFFAOYSA |
| Quality Level | 200  |
| SMILES string | [Li+].CC(C)(C)[O-] |
| Application: | Lithium tert-butoxide (LiOtBu) is a weakly basic and nucleophilic alkali metal oxide commonly used as an initiator for anionic polymerization. Other synthetic applications: • In combination with potassium diisopropylamide, LiOtBu can be used to deprotonate 1-(phenylseleno) alkenes and bis (phenylseleno) acetals. • LiOtBu can mediate the α-alkylation reaction of ketones with primary alcohols in the absence of any transition metal catalyst. • LiOtBu is an effective base for the synthesis of 3,4,5-trisubstituted 3H-oxazol-2-ones and 3,4-disubstituted (Z)-oxazolidin-2-ones from substituted propargyl alcohols and aryl/alkyl isocyanates using DMF as a solvent. |
| Packaging: | 25, 100 g in glass bottle |
| Symbol |    GHS02,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H251 - H302 - H314 |
| Precautionary statements | P235 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 11-14-34 |
| Safety Statements | 7/8-26-33-36/37/39-43-45 |
| RIDADR | UN 3206 8(4.2) / PGII |
| WGK Germany | WGK 3 |
| Supplemental Hazard Statements | EUH014 |
| Purity | 97% |
| bp | 110 °C/at 0.1333 hPa |
| Density | 0,897 g/cm3 |
| UNSPSC | 12352300 |