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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 55853Generated: October 28, 2026

Phenethylamine → benzyl-methyl-(2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-6-yl)-amine

https://huagongshe.com/reaction/55853

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenethylamineHCID 1001—
Reactant6-Chloro-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indoleHCID 5091580—
ReactantSodium t-butoxideHCID 23676156—
Reactant2,4Di-tert-butylphosphino-2',4',6'-triisopropyl biphenylHCID 86692802—
Catalystpalladium(II) acetateHCID 167845—
SolventTolueneHCID 1140—
Productbenzyl-methyl-(2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-6-yl)-amineHCID 53372368109.1%

Reaction Steps

To a degassed mixture of 6-chloro-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (100 mg, 0.5 mmol), sodium tert-butoxide (576 mg, 6.0 mmol), palladium acetate (22.4 mg, 0.1 mmol) and 2,4 di-tert-butylphosphino-2′,4′,6′-triisopropyl biphenyl (63.0 mg, 0.15 mmol) was added dry toluene (2 mL). After stirring for 5 min, benzylmethylamine (0.09 mL, 0.7 mmol) was added to the reaction mixture, which was stirred at 100° C. for 16 h. The reaction mixture was filtered and residue washed with EtOAc. The filtrate was concentrated under reduced pressure to afford crude material, which was purified by reverse phase HPLC to yield benzyl-methyl-(2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-6-yl)-amine (50 mg). 1H NMR (Freebase, CDCl3) δ (ppm): 7.80 (bs, 1H), 7.38 (m, 4H), 7.28 (m, 1H), 7.10 (s, 1H), 7.0 (t, 1H), 6.78 (d, 1H), 4.28 (s, 2H), 3.70 (s, 2H), 2.86 (m, 4H), 2.78 (s, 3H), 2.58 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09433626B2
Source datasetuspto-grants-2016_09
ORD IDord-98776dc874fc4123b5756011dcbf0135
Source noteuspto-grants-2016_09