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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2400186Generated: October 27, 2026

Cyanamide → HCID 178474228, compound

https://huagongshe.com/reaction/2400186

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanamideHCID 9864—
Reactant4-(Acetylamino)-3-Aminobenzoic Acid HydrochlorideHCID 67567808—
CatalystHydrochloric AcidHCID 313—
SolventWaterHCID 962—
ProductHCID 178474228HCID 178474228157.5%

Reaction Steps

A mixture of 108 (100 mg, 0.43 mmol) and cyanamide (27 mg, 0.65 mmol) was mixed and heated at 85-100 C. with stirring for 15 minutes. The liquid mass was cooled to room temperature, dissolved in hot water (0.7 mL), and acidified with 1-2 drops of conc. HCl. The thick solid which separated was filtered and dried to give crude 113 (160 mg). This was recrystallized from 5% HCl to give the pure hydrochloride salt of 113 (50 mg, 52%): mp 284-287 C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05453533
Source datasetuspto-grants-1995_09
ORD IDord-8a9f5e99436f4aeea7b95168c16017fb
Source noteuspto-grants-1995_09