N,1-Dimethyl-3,3-diphenylpropylamine → 1,N-dimethyl-3,3-diphenylpropylamine hydrochloride

HRID 622732Notes

Reaction equation

HRID 622732 reaction equation
CC1NC(C)=C(C(OCC[Cl:26])=O)C(C2C=CC=C([N+]([O-])=O)C=2)C=1C(OC)=O.[CH3:28][CH:29]([NH:44][CH3:45])[CH2:30][CH:31]([C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>C1(C)C=CC=CC=1.C(OCC)C>[ClH:26].[CH3:28][CH:29]([NH:44][CH3:45])[CH2:30][CH:31]([C:38]1[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=1)[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1

Participants

5

Reactant 2

HCID 122534N,1-Dimethyl-3,3-diphenylpropylamineHCID 30168882-Chloroethyl methyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate

Product 1

HCID 700429241,N-dimethyl-3,3-diphenylpropylamine hydrochloride

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 3283Diethyl EtherSolvent

Procedure

A solution of 3.94 g of methyl 2-chloroethyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-pyridine-3,5-dicarboxylate and 4.78 g of 1,N-dimethyl-3,3-diphenylpropylamine in 12 ml of toluene was refluxed under stirring for 25 hours. Upon completion of the reaction the mixture was diluted with diethyl ether and the 1,N-dimethyl-3,3-diphenylpropylamine hydrochloride formed was collected by filtration. The filtrate was then evaporated, and the crude product thus obtained was purified by repeated chromatography on silica gel, using first chloroform, then chloroform:ethyl acetate (85:15 by volume) and lastly ethyl acetate as eluent. The purified product was dissolved in methanol and ethanolic hydrogen chloride was added. The solution was filtered and evaporated to dryness. Repeated washings with warm diethyl ether:acetone (98:2 by volume) afforded 2.98 g of the title compound, m.p. 113°-120° C.

Workup

  1. customUpon completion of the reaction the mixture

Sources & evidence

ORD record
ord-42b4d4c3734b4de88ae98a4118330e83
Source dataset
uspto-grants-1988_09
Patent number
US04772621

Reaction notes

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