Pyridine → HCID 67268822, compound

HRID 749806Notes

Reaction equation

HRID 749806 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[NH:14][N:13]=[C:12]([C:18]3[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:25]1(B(O)O)[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.N1C=CC=CC=1>C(Cl)Cl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[N:14]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[N:13]=[C:12]([C:18]3[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 3

HCID 1049PyridineHCID 66827Phenylboronic AcidHCID 672690203-(4-chloro-phenyl)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester

Product 1

HCID 67268822HCID 67268822, compound

Reagents, catalysts & solvents 2

HCID 8895Cupric acetateCatalystHCID 6344DichloromethaneSolvent

Procedure

A solution of 3-(4-chloro-phenyl)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 59, Step C; 0.3 mmol) in CH2Cl2 (5 mL) was treated with phenylboronic acid (0.6 mmol), pyridine (0.6 mmol), and copper(II) acetate (4.5 mmol). The mixture was stirred at RT for 16 h. After concentration and purification (SiO2, EtOAc/hexanes), 3-(4-chloro-phenyl)-1-phenyl-1,4,5,6,7,8-hexahydro-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester was obtained. This intermediate was then diluted with CH2Cl2 (10 mL), and TFA (1 mL) was added. The mixture was stirred at RT for 4 h. The mixture was concentrated and the residue was purified (SiO2, 2 M NH3 in MeOH/CH2Cl2) to provide the title compound (40 mg). MS (ESI): exact mass calculated for C19H18ClN3, 323.12; found, m/z 324.1 [M+H]+. 1H NMR (500 MHz, CDCl3): 7.46-7.40 (m, 4H), 7.36-7.32 (m, 5H), 3.09-3.07 (br m, 4H), 3.00-2.98 (br m, 2H), 3.92-2.90 (br m, 2H).

Workup

  1. concentrationAfter concentration and purification (SiO2, EtOAc/hexanes)

Sources & evidence

ORD record
ord-7e6803569985400aa9ee8d39bb555e7e
Source dataset
uspto-grants-2008_07
Patent number
US07402680B2

Reaction notes

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