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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1195959Generated: November 1, 2026

Water → HCID 18990404, compound

https://huagongshe.com/reaction/1195959

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSulfuric AcidHCID 1118—
ReactantHCID 19389229HCID 19389229—
SolventMethanolHCID 887—
ProductHCID 18990404HCID 1899040489.5%

Reaction Steps

A solution containing 1.2 g of the product obtained in Example 43 and a catalytic amount of sulfuric acid in 10 ml of methanol was refluxed for 3 h. 20 ml of water was added and on cooling 0.85 g (89.5%) of the desired product was crystallized, m.p. 207°-208° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05112861
Source datasetuspto-grants-1992_05
ORD IDord-3e2095528a7747e08d6cff10aec251c5
Source noteuspto-grants-1992_05