tert-Butyl 7-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate → tert-Butyl 7-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate

HRID 2237062Notes

Reaction equation

HRID 2237062 reaction equation
[C:1]([N:8]1[CH2:17][CH2:16][C:15]2[C:10](=[CH:11][C:12]([N+:18]([O-])=O)=[CH:13][CH:14]=2)[CH2:9]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2]>CO.[Pd]>[NH2:18][C:12]1[CH:11]=[C:10]2[C:15]([CH2:16][CH2:17][N:8]([C:1]([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2])[CH2:9]2)=[CH:14][CH:13]=1

Participants

4

Reactant 1

HCID 6420695tert-Butyl 7-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate

Product 1

HCID 22061016tert-Butyl 7-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

The nitro compound obtained above (4.1 g, 14.7 mmol) was dissolved in MeOH (80 mL) and hydrogenated in the presence of 10% Pd/C (0.3 g), according to General Procedure H. Workup afforded 7-amino-2-Boc-1,2,3,4-tetrahydroisoquinoline (2-Boc-TIQ aniline (3.6 g, 98% yield) as a light-brown solid.

Sources & evidence

ORD record
ord-0656552649054386af21d7355bed5be0
Source dataset
uspto-grants-2010_05
Patent number
US07714013B2

Reaction notes

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