920-36-5

Basic information

• Product Name: ISOBUTYLLITHIUM
• Synonyms: isobutyllithiumsolution;LITHIUM 2-METHYL-1-PROPANIDE;ISOBUTYLLITHIUM;ISOBUTYLLITHIUM SOLUTION, ~15% IN HEPTANE;Isobutyllithium, 1.6M solution in heptane;Isobutyllithium1.6M solution in heptaneAcroSeal§3;Iso-Butyllithium 0.7M in hexanes;Isobutyllithium, 1.6M solution in heptane, AcroSeal
• CAS NO: 920-36-5
• Molecular Formula: C₄H₉Li
• Molecular Weight: 64.06
• Mol File: 920-36-5.mol

Chemical Properties

• Flash Point: -4℃
• Appearance: Yellow/Liquid
• Density: 0.69 g/mL at 20 °C
• Vapor Pressure: 2580mmHg at 25°C
• Storage Temp.: 2-8°C
• BRN: 4450775
• CAS DataBase Reference: ISOBUTYLLITHIUM(CAS DataBase Reference)
• NIST Chemistry Reference: ISOBUTYLLITHIUM(920-36-5)
• EPA Substance Registry System: ISOBUTYLLITHIUM(920-36-5)

Safety Data

• Hazard Codes: F,C,N
• Statements: 11-14/15-17-34-50/53-65-67-51/53-35
• Safety Statements: 16-26-33-36/37/39-43-45-60-61-62-7/9-43B-6A
• RIDADR: UN 3394 4.2/PG 1
• WGK Germany: 1
• F: 10-21
• Hazardous Substances Data: 920-36-5(Hazardous Substances Data)

Usage

Chemical Properties

Yellowish solution

InChI:InChI=1/C4H9.Li/c1-4(2)3;/h4H,1H2,2-3H3;/q-1;+1

Upstream product

• 513-36-0 isobutyryl chloride 
• 513-38-2 Isobutyl iodide 

Downstream Products

• 20608-41-7 P(CF3)2C4H9-i 
• 5705-57-7 N-isobutyl-benzamide 
• 51619-83-1 2-Methyl-6-[(S)-4-(4-methyl-benzyloxymethyl)-cyclohex-3-enyl]-heptan-4-one 
• 848981-28-2 [Hf(isobutyl)2((2,6-Cl₂C₆H₃NCH₂CH₂)2NMe)] 
• 1207259-32-2 1-(2,4-Dichloro-phenyl)-3-methyl-butan-1-ol 
• 1352790-11-4 (2R)-2-trifluoromethyl-2-((1R)-2-hydroxy-1-phenylethylamino)-4-methylpentanol 
• 200496-48-6 (E)-(5-methylhex-1-en-1-yl) benzene 
• 66283-21-4 (S)-3-methyl-1-phenylbutanol 
• 1565-86-2 (R)-3-methyl-1-phenylbutanol 
• 348168-03-6 chloroisovalerophenone 
• 869478-43-3 4-{4-methyl-2-[(S)-3-methyl-1-((S_S)-2-methyl-propane-2-sulfinylamino)-butyl]-phenyl}-piperazine-1-carboxylic acid tert-butyl ester 
• 626220-01-7 4-{2-[(S)-3-methyl-1-((S_S)-2-methyl-propane-2-sulfinylamino)-butyl]-4-trifluoromethyl-phenyl}-piperazine-1-carboxylic acid tert-butyl ester 
• 851753-47-4 4-{2-fluoro-6-[(S)-3-methyl-1-((S_S)-2-methyl-propane-2-sulfinylamino)-butyl]-phenyl}-piperazine-1-carboxylic acid tert-butyl ester 
• 6161-65-5 2-methoxy-6-methyl-benzoic acid 

Relevant articles and documents

Crystalline 10,10-Bis((2-fluoro-4-pyridinyl)methyl)-9(10H)-Anthracenone and an improved process for preparing the same

The present invention relates to processes for the synthesis of a crystalline polymorph of 10,10-Bis((2-fluoro-4-pyridinyl)methyl)-9(10H)-Anthracenone in high purity. The product is useful in the synthesis of pharmaceutical compounds for the reduction of cholinergic system dysfunction.

Convergent synthesis of alpha -aryl- beta -ketonitriles

The present invention relates to processes for the production of alpha -aryl- beta -ketonitriles, which serve as synthetic intermediates in the preparation of a series of biologically important molecules such as corticotropin releasing factor (CRF) receptor antagonists.

NMR spectra of a hydrocarbon-soluble organosodium compound and its lithium analogs

1H, 23Na, and 7Li NMR spectra of 2-ethylhexylsodium, 2-ethylhexyllithium, and isobutyllithium obtained in the reaction of the corresponding alkyl chlorides and metals have been recorded. The 1H NMR signal for the protons of the CH2Na group is shifted upfield compared with that for the protons of the CH2Li group (doublets at δ -0.88 and δ -0.83, respectively). The composition of the products of reaction of 2-ethylhexyl chloride with sodium depends on the form of the metal reagent employed. The use of sodium balls with diameter up to 2 mm results in the formation of products containing ionic chlorine (30-50 % with respect to Na); the reaction with the dispersion proceeds faster and the reaction product is chlorine-free. The 23Na NMR spectra of these substances are also different, which is explained by the formation of 2-ethylhexylsodium complexes with NaCl in the former case.