Binap, (A+-)- → HCID 58576668, compound

HRID 511137Notes

Reaction equation

HRID 511137 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH2:14])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[C:16]1[CH:17]=[CH:18][C:19]([N+:22]([O-:24])=[O:23])=[N:20][CH:21]=1.C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC(C)([O-])C.[Na+]>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:16]2[CH:21]=[N:20][C:19]([N+:22]([O-:24])=[O:23])=[CH:18][CH:17]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 634876Binap, (A+-)-HCID 8176205-Bromo-2-nitropyridineHCID 12682914-Amino-1-Boc-piperidineHCID 23676156Sodium t-butoxide

Product 1

HCID 58576668HCID 58576668, compound

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Procedure

A mixture of 4-amino-piperidine-1-carboxylic acid tert-butyl ester (500 mg; 2.5 mmol), 5-bromo-2-nitro-pyridine (406 mg; 2.0 mmol), Tris(dibenzylideneacetone)dipalladium (36 mg; 0.04 mmol), 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (75 mg; 0.12 mmol), and sodium tert-butoxide (280 mg; 3.00 mmol) is suspended in toluene (5 mL) and is irradiated in a mono-mode microwave oven for 30 minutes at 120° C. The mixture is then concentrated under reduced pressure and the crude residue is purified by column chromatography on silica gel (dichloromethane:ethyl acetate 1:0 and then 4:1). The desired product is obtained with 78% purity (200 mg; 0.62 mmol).

Workup

  1. customis irradiated in a mono-mode microwave oven for 30 minutes at 120° C
  2. concentrationThe mixture is then concentrated under reduced pressure
  3. customthe crude residue is purified by column chromatography on silica gel (dichloromethane:ethyl acetate 1:0

Sources & evidence

ORD record
ord-c935d191776c4524b4b371355078a5fa
Source dataset
uspto-grants-2015_08
Patent number
US09096524B2

Reaction notes

Loading…