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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1627396Generated: October 31, 2026

Hydrazine hydrate (1:1) → HCID 66740370, compound

https://huagongshe.com/reaction/1627396

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantEthyl 2-(3,4-dimethoxyphenyl)-2-methylpropanoateHCID 20523075—
SolventMethanolHCID 887—
ProductHCID 66740370HCID 66740370102.5%

Reaction Steps

A solution of ethyl 2-(3,4-dimethoxyphenyl)-2-methylpropanoate (2.84 g, 11.26 mmol) and hydrazine hydrate (7.00 mL, 112.56 mmol) in MeOH (15 mL) was heated at 110° C. in a sealed tube. After 12 h, additional hydrazine hydrate (10 mL) was added to the reaction mixture, which then was heated for additional 6 h. The cooled mixture was concentrated to afford 2-(3,4-dimethoxyphenyl)-2-methylpropanehydrazide (2.75 g, quant) as a liquid. 1H NMR (400 MHz, CDCl3) δ 6.94-6.91 (m, 1H), 6.87-6.81 (m, 2H), 3.88 (s, 3H), 3.87 (s, 3H), 3.69 (br s, 3H), 1.56 (s, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785488B2
Source datasetuspto-grants-2014_07
ORD IDord-171a6e2a549541b089805edb2b9e3b60
Source noteuspto-grants-2014_07