Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2232222Generated: October 31, 2026

Pyrrolidine → 1,2,4-Triazolo(3,4-a)phthalazine, 3-phenyl-6-(1-pyrrolidinyl)-

https://huagongshe.com/reaction/2232222

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant6-chloro-3-phenyl-[1,2,4]triazolo[3,4-a]phthalazineHCID 1502563—
SolventEthanolHCID 702—
Product1,2,4-Triazolo(3,4-a)phthalazine, 3-phenyl-6-(1-pyrrolidinyl)-HCID 307118582%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 6-chloro-3-phenyl-1,2,4-triazolo[3,4-a]phthalazine (5 g), pyrrolidine (5 ml), ethanol (35 ml) and catalytic amounts of KI, is poured in a pressure resistant vessell and heated to 100° C. for 8 hours. The reaction mixture is then cooled, the solvent is evaporated off and the residue is thoroughly washed with a small amount of water and crystallized from ethanol yielding the compound of the title in 82% yield. M.p. 208°-09° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04788186
Source datasetuspto-grants-1988_11
ORD IDord-d29737e240ed4ddd8d237de9bba165f7
Source noteuspto-grants-1988_11