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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1974709Generated: November 4, 2026

Water → HCID 18990404, compound

https://huagongshe.com/reaction/1974709

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 numberUS05283352
Source datasetuspto-grants-1994_02
ORD IDord-19535170f1144fe592781aa9e8d07472
Source noteuspto-grants-1994_02