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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 220000Generated: October 26, 2026

Ethyl Acetoacetate → HCID 178429550, compound

https://huagongshe.com/reaction/220000

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetoacetateHCID 8868—
ReactantPhosphorus trichlorideHCID 24387—
ReactantAcetic Acid N'-(3,4-Dichlorophenyl)hydrazideHCID 612829—
ProductHCID 178429550HCID 17842955041.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a mixture of (V) (5.0 g, 22.8 mmol) and ethyl acetoacetate (2.97 g 22.8 mmol) was slowly added PCl3 (3.13 g, 22.8 mmol). The mixture was warmed to 50° C. for 1.5 h, poured into ice water (150 ml), and the resulting precipitate was collected on a sintered glass funnel and recrystallized from EtOH to yield (VI) (2.29 g, 41%) as white crystals, mp 208-211° C. (lit. 208-209° C.), TLC CHCl3/MeOH 9:1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08202872B2
Source datasetuspto-grants-2012_06
ORD IDord-0c97f8adbe654658923d88615202f0ac
Source noteuspto-grants-2012_06