O-MethoxyCarbonylBenzeneSulfonylIsocyanate
O-MethoxyCarbonylBenzeneSulfonylIsocyanate
CAS: 74222-95-6
Molecular Formula: C9H8NO5S
O-MethoxyCarbonylBenzeneSulfonylIsocyanate - Names and Identifiers
| Name | O-MethoxyCarbonylBenzeneSulfonylIsocyanate |
| Synonyms | O-MethoxyCarbonylBenzeneSulfonylIsocyanate |
| CAS | 74222-95-6 |
O-MethoxyCarbonylBenzeneSulfonylIsocyanate - Physico-chemical Properties
| Molecular Formula | C9H8NO5S |
| Molar Mass | 242.22852 |
| Physical and Chemical Properties | This product is amber oily liquid, irritating and easy to hydrolyze. B. p.136 ~ 140 ℃/0.133 kPa, soluble in toluene, xylene and other solvents. |
O-MethoxyCarbonylBenzeneSulfonylIsocyanate - References
| Use | O-methoxycarbonylbenzenesulfonyl isocyanate is an intermediate of sulfonylurea herbicides messulfuron, sulfuron-methyl and sulfuron-methyl. |
| production method | its preparation method is to add xylene, n-butyl isocyanate and tertiary amine catalyst in the reaction kettle, stir, then add o-methoxycarbonyl benzene sulfonamide to raise the temperature to reflux, after a certain period of reaction, phosgene is introduced at 120~130 ℃, reflux for 1 h after phosgene is introduced, and phosgene is removed with nitrogen, desolubilization to obtain finished sulfonyl isocyanate. |
Last Update：2024-04-09 21:11:58
