Basic information Safety Supplier Related

2,4,6-TRIMETHYLPHENYL ISOCYANATE

Basic information Safety Supplier Related

2,4,6-TRIMETHYLPHENYL ISOCYANATE Basic information

Product Name:
2,4,6-TRIMETHYLPHENYL ISOCYANATE
Synonyms:
  • 2,4,6-TRIMETHYLPHENYL ISOCYANATE
  • Mesityl isocyanate
  • 2,4,6-Trimethylphenyl isocyanate 99%
  • Benzene, 2-isocyanato-1,3,5-trimethyl-
CAS:
2958-62-5
MF:
C10H11NO
MW:
161.2
Product Categories:
  • Isocyanates
  • Nitrogen Compounds
  • Organic Building Blocks
Mol File:
2958-62-5.mol
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2,4,6-TRIMETHYLPHENYL ISOCYANATE Chemical Properties

Melting point:
44-48 °C(lit.)
Boiling point:
218-220°C
Flash point:
220 °F
storage temp. 
2-8°C
Water Solubility 
It hydrolyzes in water.
Sensitive 
Moisture Sensitive
BRN 
2085601
CAS DataBase Reference
2958-62-5
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22-36-42-36/37/38-23/25
Safety Statements 
26-60-45-36/37-22-20-9-4
RIDADR 
2811
WGK Germany 
3
HazardClass 
6.1
PackingGroup 
II
HS Code 
29291090

MSDS

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2,4,6-TRIMETHYLPHENYL ISOCYANATE Usage And Synthesis

Uses

2,4,6-Trimethylphenyl isocyanate is used as an organic chemical synthesis intermediate.

Preparation

A solution of Boc2O (619 mg, 2.84 mmol) in acetonitrile (2 mL) was treated successively with a solution of 4-dimethylaminopyridine (33 mg, 0.27 mmol) in acetonitrile (2 mL) and a solution of 348 (365 mg, 2.7 mmol) in acetonitrile (2 mL). The reaction mixture was stirred vigorously for 10 min. After the addition of concentrated sulfuric acid in acetonitrile (40% solution, ρ= 1:03 g cm-3, 0.47 mL), the resulting mixture was stirred for 5 min. Water (0.47 mL) was then added, and the mixture was stirred for a further 5 min. The reaction mixture was then poured into an equal volume of water. The solution was extracted three times with hexane, and the combined hexane layers were dried over magnesium sulfate. Removal of the solvent in vacuo afforded mesityl isocyanate 349 (420 mg, 97%) as colorless crystals; mp 42 °C.

2,4,6-TRIMETHYLPHENYL ISOCYANATESupplier

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