methyl 2-(isocyanatosulfonylmethyl)benzoate
methyl 2-(isocyanatosulfonylmethyl)benzoate Basic information
- Product Name:
- methyl 2-(isocyanatosulfonylmethyl)benzoate
- Synonyms:
-
- methyl 2-(isocyanatosulfonylmethyl)benzoate
- 2-(isocyanatosulfonylmethyl)benzoic acid methyl ester(alt.):methyl 2-(isocyanatosulfonylmethyl)benzoate
- o-methoxy carbonyl benzyl Sulfonyl isocyanate
- Benzoic acid, 2-[(isocyanatosulfonyl)methyl]-, methyl ester
- CAS:
- 83056-32-0
- MF:
- C10H9NO5S
- MW:
- 255.25
- EINECS:
- 410-900-9
- Mol File:
- 83056-32-0.mol
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methyl 2-(isocyanatosulfonylmethyl)benzoate Chemical Properties
- Boiling point:
- 427.2±55.0 °C(Predicted)
- Density
- 1.34±0.1 g/cm3(Predicted)
- EPA Substance Registry System
- Benzoic acid, 2-[(isocyanatosulfonyl)methyl]-, methyl ester (83056-32-0)
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Safety Information
- Hazard Codes
- Xn
- Risk Statements
- 10-14-20-41-42-48/22-68
- Safety Statements
- 23-26-36/37/39
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methyl 2-(isocyanatosulfonylmethyl)benzoate Usage And Synthesis
Chemical Properties
Oily liquid, soluble in xylene and acetonitrile.
Uses
Methyl 2-(isocyanatosulfonylmethyl)benzoate is an intermediate for the herbicide bensulfuron-methyl.
Synthesis
The preparation method is as follows: adding a mixture of n-butyl isocyanate and xylene into a reaction kettle, then adding o-methoxycarbonylbenzylsulfonamide, stirring, heating up to 120° C, passing through phosgene for 3 hours, sampling and analyzing, and the reaction is over. The phosgene is driven with nitrogen for about 1.5h, followed by distillation to recover n-butyl isocyanate and xylene, and the residual liquid is methyl 2-(isocyanatosulfonylmethyl)benzoate.