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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1730776Generated: November 1, 2026

Phthalimide → 2',5-dichloro-2-[3-(phthalimidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone

https://huagongshe.com/reaction/1730776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalimideHCID 6809—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
Reactant2',5-Dichloro-2-(3-hydroxymethyl-5-methyl-4H-1,2,4-triazol-4-yl)benzophenoneHCID 6452950—
SolventTetrahydrofuranHCID 8028—
Product2',5-dichloro-2-[3-(phthalimidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenoneHCID 12611944—

Reaction Steps

In the manner given in Example 3, a mixture of 2',5-dichloro-2-[3-(hydroxymethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone, phthalimide and triphenylphosphine in tetrahydrofuran was treated with diethyl azodicarboxylate to give 2',5-dichloro-2-[3-(phthalimidomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone of melting point 262°-265°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03993660
Source datasetuspto-grants-1976_11
ORD IDord-f98c91f1c1e54930a58938d2e6c69767
Source noteuspto-grants-1976_11