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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1630549Generated: October 30, 2026

1,2-Dimethoxyethane → HCID 68283769, compound

https://huagongshe.com/reaction/1630549

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DimethoxyethaneHCID 8071—
ReactantPotassium CarbonateHCID 11430—
Reactant1-Naphthaleneboronic acidHCID 254532—
Reactant5-(2-bromocyclopent-1-enyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indoleHCID 68284008—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
ProductHCID 68283769HCID 68283769—

Reaction Conditions

Temperature90 °C

Reaction Steps

A solution of 5-(2-bromocyclopent-1-enyl)-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (100 mg, 0.29 mmol), naphthalene-1-boronic acid (99 mg, 0.575 mmol) and potassium carbonate (120 mg, 0.87 mmol) in mixture of 1,2-dimethoxyethane (4 mL)-water (2 mL) was purged with nitrogen followed by addition of Pd(PPh3)4 (16 mg, 0.0147 mmol). The reaction mixture was stirred at 90° C. for 45 min. The solvent was removed under reduced pressure, residue diluted with water (20 mL) and extracted with EtOAc (50 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated. The residue was purified by reverse phase HPLC to yield 2,8-dimethyl-5-(2-(naphthalen-1-yl)cyclopent-1-enyl)-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole. 1H NMR (DMSO, TFA salt) δ (ppm): 8.0 (d, 1H), 7.8 (d, 1H), 7.79 (d, 1H), 7.3-7.5 (m, 5H), 7.1 (s, 1H), 6.9 (d, 1H), 4.21 (m, 2H), 3.4 (m, 2H), 2.77-3.0 (m, 9H), 2.3 (m, 5H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791132B2
Source datasetuspto-grants-2014_07
ORD IDord-24a8075a436d4cef963a7a6ed166579b
Source noteuspto-grants-2014_07