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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1013172Generated: October 31, 2026

5-Chloro-2-methylindole → 1-chloro-4-(5-chloro-2-methyl-1H-indol-3-yl)phthalazine

https://huagongshe.com/reaction/1013172

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chloro-2-methylindoleHCID 70636—
Reactant1,4-DichlorophthalazineHCID 78490—
ReactantAluminum(III) ChlorideHCID 6451240—
Solvent1,2-DichloroethaneHCID 11—
Product1-chloro-4-(5-chloro-2-methyl-1H-indol-3-yl)phthalazineHCID 5824718987.6%

Reaction Conditions

Temperature65 °C

Reaction Steps

5-Chloro-2-methylindole (0.74 g, 2.26 mmol) and 1,4-dichloro-phthalazine (0.45 g, 2.26 mmol) were treated with 30 mL of 1,2-dichloroethane and 3.2=mmol of AlCl3 (427 mg). The resulting suspension was heated to 65° C. overnight. The reaction was cooled and quenched with 3 mL water. The resultant precipitate was filtered and dried under vacuum to give 0.65 g of the sub-title compound. MS: ESI (negative): 326, 328 (M−H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981912B2
Source datasetuspto-grants-2011_07
ORD IDord-41e10260748e46b5ac0bb23c2a6b50ae
Source noteuspto-grants-2011_07