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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1499059Generated: October 30, 2026

Potassium Phosphate, Tribasic → HCID 53373017, compound

https://huagongshe.com/reaction/1499059

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant6-BromoquinolineHCID 79243—
ReactantL-ProlineHCID 145742—
Reactant1H-Pyrido[4,3-b]indole, 2,3,4,5-tetrahydro-2,8-dimethyl-HCID 209291—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 53373017HCID 53373017—

Reaction Steps

A solution of 2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (0.1 g, 0.5 mmol), 6-bromoquinoline (0.135 mL, 1 mmol), K3PO4 (0.318 g, 1.5 mmol), CuI (9.5 mg, 0.05 mmol) and L-Proline (11.5 mg, 0.1 mmol) in dry DMF (5 mL) was stirred at 150° C. for 24 h. The reaction mixture was diluted with water and extracted with EtOAc. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford crude material, which was purified by reverse phase HPLC to yield 2,8-dimethyl-5-quinolin-6-yl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole as an off white solid (8 mg). 1H NMR (Oxalate salt, CD3OD) δ (ppm): 8.92 (d, 1H), 8.43 (d, 1H), 8.2 (dd, 1H), 8.0 (d, 1H), 7.8 (d, 1H), 7.6 (dd, 1H), 7.38 (d, 1H), 7.18 (d, 1H), 7.0 (dd, 1H), 4.42 (s, 2H), 3.5 (m, 2H), 3.1 (m, 5H), 2.4 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09199985B2
Source datasetuspto-grants-2015_12
ORD IDord-ce9a219098a34fbb987cf5fb06339e5c
Source noteuspto-grants-2015_12