2-METHYL-3-BUTENENITRILE

PRODUCT IDENTIFICATION
CAS NO. 16529-56-9

2-METHYL-3-BUTENENITRILE

EINECS NO. 240-596-1
FORMULA C5H7N
MOL WT. 81.12

H.S. CODE

  

TOXICITY

  
SYNONYMS 2,3-Methylbutenenitrile 2M3BN 2-Methyl Allylcyanide
3-Cyanobutene-1 3-Butenenitrile, 2-Methyl-
PRICE  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Clear to yellow liquid
MELTING POINT  
BOILING POINT 121 C
SPECIFIC GRAVITY

0.81

SOLUBILITY IN WATER 1-5 g/100 ml but soluble in acetone, ethanol
pH  
VAPOR PRESSURE 12 mmHg

REFRACTIVE INDEX

 

NFPA RATINGS

 Health (H) : 3 Flammability (F) : 3 Reactivity (R) : 1

AUTOIGNITION

 

FLASH POINT

15 C

STABILITY  

APPLICATIONS
Intermediates provide functional groups, building blocks, possibilities for motif modifications, and leaving group to create a desired chemical compound through a series of chemical reactions. 2-Methyl-2-Butenenitrile, 2,3-Dimethylacrylonitrile in acrylic system name, has a branch, carbon-carbon solid bond and nitrile functional group. Its unsaturated bond enables a series of addition reactions at beta carbon, producing methyl branched derivatives including tiglic acid and angelic acid and their derivatives. Tiglic acid is structurally the trans- form of methyl branched crotonic acid found in croton oil (trans-2,3-Dimethylacrylic acid in acrylic acid series naming). The cis- form of methyl branched crotonic acid is called angelic acid obtainable naturally from roots of Angelica plant. A large number of inorganic or organic reagents, can be added to this unsaturated bond.

Although nitriles don't have a carbonyl group, they are often considered as derivatives of carboxylic acids. Nitrile undergoes acid hydrolysis to form a carboxylic acid. Nitrile is reduced to form amine in the presence of nickel catalyst. Grignard reagents add to nitriles, forming a relatively stable imino derivative which can be hydrolyzed to a ketone. Metaloimine is hydrolyzed to give beta-ketoester. Nitrile undergoes a sequence of nucleophilic additions with an alcohol under acid catalysis, called nitrile alcoholysis. Nitriles are hydrolyzed to carboxylic acids, alcoholyzed to esters, reduction to amines, cyclized to pyridine derivatives.

2-Methyl-3-butenenitrile finds applications in dye and flavour & fragrance manufacturing, rubber chemicals, and lubricant as well as a monomer.
SALES SPECIFICATION

APPEARANCE

 Clear to yellow liquid

CONTENT

85.0% min

TRANS ISOMER

4.0% max

PENTENENITRILES

10.0% max

MOISTURE

0.2% max

TRANSPORTATION
PACKING 160kgs in Drum
HAZARD CLASS

3

UN NO.

1993

OTHER INFORMATION

Hazard Symbols: F XN, Risk Phrases: 11-20/22, Safety Phrases: 16-23