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Hydrochloric Acid → 9-{[4-(Trifluoromethyl)phenyl]methyl}-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]-indole mono hydrochloride

HRID 1063242
Notes
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Reaction equation

HRID 1063242 reaction equation
C(OC([N:11]1[CH2:23][CH2:22][C:21]2[C:20]3[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=3)[N:14]([CH2:24][C:25]3[CH:30]=[CH:29][C:28]([C:31]([F:34])([F:33])[F:32])=[CH:27][CH:26]=3)[C:13]=2[CH2:12]1)=O)C1C=CC=CC=1.[ClH:35]>CO.O1CCOCC1.[Pd]>[ClH:35].[F:34][C:31]([F:32])([F:33])[C:28]1[CH:29]=[CH:30][C:25]([CH2:24][N:14]2[C:15]3[C:20](=[CH:19][CH:18]=[CH:17][CH:16]=3)[C:21]3[CH2:22][CH2:23][NH:11][CH2:12][C:13]2=3)=[CH:26][CH:27]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 2

HCID 313Hydrochloric AcidHCID 120692942-benzyloxycarbonyl-9-{[4-(trifluoromethyl)phenyl]methyl}-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole

Product 1

HCID 185199049-{[4-(Trifluoromethyl)phenyl]methyl}-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]-indole mono hydrochlorideYield 92%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalyst
HCID 887
Methanol
Solvent
HCID 312751,4-DioxaneSolvent

Procedure

To a solution of 2-benzyloxycarbonyl-9-{[4-(trifluoromethyl)phenyl]methyl}-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole (8.73 g, 18.81 mmole) in methanol (50 mL), dioxane (50 mL) and HCl (19 mL, 1M in dioxane) at RT in a Parr hydrogenation flask was added 10% Pd/C (0.5 g). The reaction mixture was shaken under 45 psi of H2 for 6 hr. The suspension was filtered through celite®, and the filter pad was washed with methanol. The filtrate was concentrated on the rotavap, and the residue was dried under high vacuum to afford the titled compound (6.33 g, 92%) as a white solid: MS (ES) m/e 331 (M+H−HCl)+.

Workup

  1. filtrationThe suspension was filtered through celite®
  2. washthe filter pad was washed with methanol
  3. concentrationThe filtrate was concentrated on the rotavap
  4. customthe residue was dried under high vacuum

Sources & evidence

ORD record
ord-f2049eea09234e5e9f5c9601d1c41a2c
Source dataset
uspto-grants-2005_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06964970B2

Reaction notes

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