78-86-4

Basic information

• Product Name: 2-Chlorobutane
• Synonyms: 1-Methylpropylchloride;sec-Butyl chloride
• CAS NO: 78-86-4
• Molecular Formula: C₄H₉Cl
• Molecular Weight: 92.56726
• EINECS: 201-151-7
• Mol File: 78-86-4.mol
• Article Data: 34

Chemical Properties

• Melting Point: -140℃
• Boiling Point: 69.2 °C at 760 mmHg
• Flash Point: -15 °C
• Appearance: colourless liquid
• Density: 0.87 g/cm³
• Vapor Pressure: 147mmHg at 25°C
• Refractive Index: 1.393
• Water Solubility: immiscible
• CAS DataBase Reference: 2-Chlorobutane(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Chlorobutane(78-86-4)
• EPA Substance Registry System: 2-Chlorobutane(78-86-4)

Safety Data

• Hazard Codes: F:Flammable
• Statements: R11:
• Safety Statements: S16:; S29:; S9:
• Hazardous Substances Data: 78-86-4(Hazardous Substances Data)

Usage

General Description

2-Chlorobutane, also known as sec-butyl chloride, is a chemical compound with the formula C4H9Cl. It is a colorless liquid that is flammable and has a strong, sweet odor. 2-Chlorobutane is primarily used as a solvent, as well as in the production of pharmaceuticals and agrochemicals. It is also used as an intermediate in the synthesis of other chemicals, such as butyne. 2-Chlorobutane can be hazardous if inhaled, ingested or in contact with the skin, and it should be handled with caution and proper safety measures.

InChI:InChI=1/C4H9Cl/c1-3-4(2)5/h4H,3H2,1-2H3

Upstream product

• 106-98-9 1-butylene 
• 107-01-7 butene-2 
• 2465-56-7 methylene 
• 75-29-6 isopropyl chloride 
• 78-92-2 iso-butanol 
• 590-18-1 (Z)-2-Butene 
• 358-36-1 n-butyl 2-chloro-1,1,2-trifluoroethyl ether 
• 123-86-4 acetic acid butyl ester 
• 78-76-2 s-butyl bromide 
• 2348-55-2 sec-Butyl-Radikal 
• 1939-99-7 benzenesulfonyl chloride 
• 105-46-4 sec-Butyl acetate 
• 543-20-4 succinoyl dichloride 
• 7782-50-5 chlorine 

Downstream Products

• 124-18-5 decane 
• 583-48-2 3,4-dimethylhexane 
• 2216-33-3 3-methyl-octane 
• 589-34-4 3-methyl-hexane 
• 57070-67-4 1,1-dichloro-3-methyl-pentane 
• 106-98-9 1-butylene 
• 590-18-1 (Z)-2-Butene 
• 624-64-6 trans-2-Butene 
• 107-01-7 butene-2 
• 78-76-2 s-butyl bromide 
• 7581-97-7 2,3-dichlorobutane 
• 4279-22-5 2,2-dichlorobutane 
• 1190-22-3 1,3-dichlorobutane 
• 616-21-7 1,2-dichlorobutane 

Relevant articles and documents

METHOD FOR PRODUCING FLUORINATED HYDROCARBON

PROBLEM TO BE SOLVED: To provide an industrially advantageous method for producing a fluorinated hydrocarbon such as 2-fluorobutane useful as etching gas for a dry etching process. SOLUTION: There is provided a method for producing a fluorinated hydrocarbon represented by formula (3) by bringing an ether compound represented by formula (1) into contact with an acid fluoride represented by formula (2) in a halogenated hydrocarbon solvent in the presence of a metal halide represented by formula (4): MX3 (M represents a metal atom; X represents a chlorine atom or a bromine atom) (R1 and R2 each independently represent an alkyl group having 1-3 carbon atoms; R1 and R2 may be bonded to form a ring structure; R3 represents H, a methyl group or an ethyl group; R4 and R5 each independently represent a methyl group or an ethyl group.) SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

METHOD OF CONVERTING ALCOHOL TO HALIDE

The present invention relates to a method of converting an alcohol into a corresponding halide. This method comprises reacting the alcohol with an optionally substituted aromatic carboxylic acid halide in presence of an N-substituted formamide to replace a hydroxyl group of the alcohol by a halogen atom. The present invention also relates to a method of converting an alcohol into a corresponding substitution product. The second method comprises: (a) performing the method of the invention of converting an alcohol into the corresponding halide; and (b) reacting the corresponding halide with a nucleophile to convert the halide into the nucleophilic substitution product.

The thermal and mass spectral fragmentation of N-butyl thiolo-, thiono-, and dithio-chloroformate

Thermal decomposition of n-butyl thiolochloroformate at 150C follows a similar pattern to that reported previously for n-butyl chloroformate, to give butyl chloride which is largely rearranged to the s-butyl isomer. An ion-pair mechanism, involving 1,2-and 1,3-hydride shifts, is proposed. The less stable thiono-and dithio-chloroformates decompose to give lower yields of butyl chlorides (mainly without rearrangement) together with numerous other byproducts, indicating the operation of a more complex combination of reaction pathways. The mass spectra of all three thio compounds exhibit molecular ions; the most prominent fragment ions in their spectra are the n-butyl cation, and the radical cations COS+ and CS2+. Numerous chlorine-containing ions of low intensity are also observed, and their mode of formation is discussed. Copyright Taylor &Francis Group, LLC.