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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1074422Generated: November 1, 2026

Phthalic Anhydride → Benzoic acid, 2-[[(1-phenylethyl)amino]carbonyl]-

https://huagongshe.com/reaction/1074422

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantPhthalamic acidHCID 6957—
Reactant1-PhenethylamineHCID 7408—
Reactant3-Phenoxy-alpha-ethynylbenzylalcoholHCID 12919092—
ProductBenzoic acid, 2-[[(1-phenylethyl)amino]carbonyl]-HCID 571713—

Reaction Steps

(-)-N-α-phenylethylphthalamic acid was prepared from phthalic anhydride and (-)α-phenylethylamine by the method of Mann and Wastom (J. Chem. Soc., 1947, 510). The ester of this phthalamic acid with racemic α-ethynyl-3-phenoxybenzyl alcohol was prepared by the method of Human and Mills (J. Chem. Soc., 1949, S77). The individual (-)(+) and (-)(-) ester diastereoisomers were separated by chromatography (HPLC) and then hydrolysed with a slight excess of alkali to recover the resolved α-ethynyl-3'-phenoxybenzyl alcohol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04391820
Source datasetuspto-grants-1983_07
ORD IDord-19fb0078446440dab4c6b58c0c3faff4
Source noteuspto-grants-1983_07