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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291807Generated: October 30, 2026

Phthalide → 2-(hydroxymethyl)-N'-phenylbenzohydrazide

https://huagongshe.com/reaction/2291807

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalideHCID 6885—
ReactantPhenylhydrazineHCID 7516—
SolventDiethyl EtherHCID 3283—
Product2-(hydroxymethyl)-N'-phenylbenzohydrazideHCID 1207253—

Reaction Conditions

Temperature20 °C

Reaction Steps

The method adopted is disclosed in Wislicenus (Berichte 20 401). Phenyl hydrazine (27 ml) and phthalide (33 g) were heated together at 70° to 80° C. for 3 hours. After cooling to 20° C. the solid product was stirred with ether (100 ml) and the product collected by filtration, washed with ether and recrystallised from 2-propanol. Yield 9.6 g (16%) melting point 170°-172° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04798780
Source datasetuspto-grants-1989_01
ORD IDord-4f47a108ee8445f8a513833621736870
Source noteuspto-grants-1989_01