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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 232147Generated: October 28, 2026

Aniline → HCID 178418256, compound

https://huagongshe.com/reaction/232147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantEthyl AcetoacetateHCID 8868—
ReactantSodium AcetateHCID 517045—
ReactantSodium NitriteHCID 23668193—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178418256HCID 17841825680,255.703%

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of aniline (37.2 g, 0.4 mmol) in water (32 ml) and concentrated hydrochloric acid (100 ml) was poured into ice (400 g). The 0° C. solution was treated with a solution of sodium nitrite (27.6 g, 0.4 mmol) in water (50 ml). The diazonium salt solution was poured rapidly into a stirred solution of ethyl acetoacetate (52 g, 0.4 mmol) in ethanol (300 ml) and ice water (1.0 L) containing sodium acetate (100 g, 1.2 mmol). Th mixture was stirred at 0° C. for 2.5 hours, filtered, and the filter cake was crystallized from ethanol to yield the title compound (75.2 g), m.p. 75°-76° C. (lit 61°-64° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04851425
Source datasetuspto-grants-1989_07
ORD IDord-76927dd4723a4ec38d9eadc39fa63e08
Source noteuspto-grants-1989_07