246611
Lithium diisopropylamide
97%
Sinonimo/i:
LDA
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About This Item
Formula condensata:
[(CH3)2CH]2NLi
Numero CAS:
Peso molecolare:
107.12
Beilstein:
3655042
Numero CE:
Numero MDL:
Codice UNSPSC:
12352001
ID PubChem:
NACRES:
NA.22
Prodotti consigliati
Densità del vapore
>1 (vs air)
Livello qualitativo
Saggio
97%
Forma fisica
solid
Densità
0.864 g/mL at 25 °C (lit.)
Stringa SMILE
[Li]N(C(C)C)C(C)C
InChI
1S/C6H14N.Li/c1-5(2)7-6(3)4;/h5-6H,1-4H3;/q-1;+1
ZCSHNCUQKCANBX-UHFFFAOYSA-N
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Descrizione generale
Lithium diisopropylamide (LDA) is a hindered non-nucleophilic strong base that abstracts hydrogen from active carbon. It can be prepared from diisopropylamine and butyllithium in the presence of tetrahydrofuran.
Applicazioni
Lithium diisopropylamide can be used for the generation of carbanion or enolate anions from carbonyl group-containing compounds.
It can also be used as a base in:
It can also be used as a base in:
- The direct alkylation and acylation of ketones.
- The aldol condensation reaction.
- α-Selenation reaction.
- The synthesis of α, β- unsaturated carbonyl compounds from carbonyl compounds.
- The alkylation of acids, esters, amides, and nitriles.
- The initiation of anionic polymerization.
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Eye Dam. 1 - Pyr. Sol. 1 - Skin Corr. 1B
Rischi supp
Codice della classe di stoccaggio
4.2 - Pyrophoric and self-heating hazardous materials
Classe di pericolosità dell'acqua (WGK)
WGK 2
Dispositivi di protezione individuale
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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