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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2375408Generated: October 31, 2026

Ethyl Bromide → HCID 69275385, compound

https://huagongshe.com/reaction/2375408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl BromideHCID 6332—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 69274136HCID 69274136—
ProductHCID 69275385HCID 69275385—

Reaction Steps

Utilizing the general procedure outlined in Example 7, 1-[4-acetyl-1-(4-hydroxy-2,5-dimethyl-phenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-ethanone (100 mg, 0.3 mmol) reacted with bromoethane (300 μL, excess), in the presence of K2CO3 (50 mg), to afford 1-[4-acetyl-1-(4-ethoxy-2,5-dimethyl-phenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-ethanone: MS (ESI) 328 (M+H)+. Utilizing the general procedure outlined in Example 48, 1-[4-acetyl-1-(4-ethoxy-2,5-dimethyl-phenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-ethanone (108 mg, 0.3) and hydrazine (50 μL) reacted to give 6-(4-Ethoxy-2,3-dimethyl-phenyl)-1,4,5,7-tetramethyl-6H-pyrrolo[3,4-d]-pyridazine as an off-white solid: 1H NMR (CDCl3, 500 MHz) δ 6.88 (s, 1H), 6.77 (s, 1H), 4.14 (q, 2H), 2.85 (s, 6H), 2.39 (s, 6H), 2.26 (s, 3H), 1.83 (s, 3H, 1.50 (t, 3H); MS (ESI) 324 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07465730B2
Source datasetuspto-grants-2008_12
ORD IDord-4e5415e224054230be24a6dccd08d649
Source noteuspto-grants-2008_12