HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1613395Generated: October 27, 2026
Water → Methylsulfamic acid 2-hydroxy-3-(2-methoxyphenoxy)propyl ester
https://huagongshe.com/reaction/1613395
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Guaifenesin | HCID 3516 | — |
| Reactant | N-Methylsulfamoyl chloride | HCID 11789235 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | Methylsulfamic acid 2-hydroxy-3-(2-methoxyphenoxy)propyl ester | HCID 53888739 | 37% |
Reaction Steps
A solution of 26.5 g (0.13 mole) of glycerol guaiacolate in 100 ml of methylene chloride and 10.8 ml (0.13 mole) of pyridine was added in a thin stream to a stirred solution of 17.1 g (0.13 mole) of N-methylsulfamoyl chloride (Preparation 22) in 70 ml of methylene chloride, and the reaction mixture was stirred at ambient temperature for 2 hr. The reaction mixture was treated with 150 ml of water, the layers were separated, and the organic layer was washed successively with a 200 ml portion of 2N hydrochloric acid solution, four 200 ml portions of water, dried (magnesium sulfate), and the solvent was evaporated under reduced pressure to yield a viscous oil. The oil was purified by preparative high pressure liquid chromatography. Fractions containing the desired product were combined and the solvents evaporated under reduced pressure to give 13.9 g (37%) of the title compound as a yellow gum.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05192785 |
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| Source dataset | uspto-grants-1993_03 |
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| ORD ID | ord-6cc78a9fc44b4c2abb3ab5adeb384dcb |
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| Source note | uspto-grants-1993_03 |
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