2-tert-butylbenzenethiol → HCID 67157078, compound

HRID 549269Notes

Reaction equation

HRID 549269 reaction equation
Br[C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][N:8]=[C:9]2[N:12]2[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]2)=[CH:4][CH:3]=1.[C:25]([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[SH:35])([CH3:28])([CH3:27])[CH3:26]>CCCCO.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:21]([O:20][C:18]([N:15]1[CH2:16][CH2:17][N:12]([C:9]2[C:10]3[C:5](=[CH:4][CH:3]=[C:2]([S:35][C:30]4[CH:31]=[CH:32][CH:33]=[CH:34][C:29]=4[C:25]([CH3:28])([CH3:27])[CH3:26])[CH:11]=3)[CH:6]=[CH:7][N:8]=2)[CH2:13][CH2:14]1)=[O:19])([CH3:24])([CH3:23])[CH3:22]

Participants

5

Reactant 2

HCID 27950322-tert-butylbenzenethiolHCID 60069826HCID 60069826, compound

Product 1

HCID 67157078HCID 67157078, compoundYield 71%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 2631-ButanolSolvent

Conditions

Temperature
110 °C

Procedure

A mixture of 4-(7-bromo-isoquinoline-1-yl)-piperazine-1-carboxylic acid, tert-butyl ester (0.5 g, 1.3 mmol), 2-t-butyl-thiophenol (0.216 g, 1.3 mmol), Nat-BuO (0.44 g, 4.5 mmol), Pd(PPh3)4 (74 mg, 0.065 mmol) in n-BuOH (10 mL) was heated at 110° C., 3 h. The reaction mixture was filtered. The filtrate was concentrated and the residue was dissolved in ethyl acetate. The organic phase was washed with water (50 mL×3), separated and dried (MgSO4), filtered. The volatiles were evaporated and the residue was purified by flash column chromatography (SiO2, n-heptane: ethyl acetate 8:2) to give 440 mg of the title compound as colorless oil (yield 71%). 1H NMR (CDCl3) δ 8.00-8.10 (m, 2H), 7.15-7.65 (m, 7H), 3.60-3.70 (m, 1H), 3.30-3.45 (m, 4H), 3.05-3.20 (m, 3H), 1.55 (s, 9H), 1.50 (s, 9H).

Workup

  1. filtrationThe reaction mixture was filtered
  2. concentrationThe filtrate was concentrated
  3. dissolutionthe residue was dissolved in ethyl acetate
  4. washThe organic phase was washed with water (50 mL×3)
  5. customseparated
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customThe volatiles were evaporated
  9. customthe residue was purified by flash column chromatography (SiO2, n-heptane: ethyl acetate 8:2)

Sources & evidence

ORD record
ord-26bec4d342624a6f88af1dc60869fdb1
Source dataset
uspto-grants-2011_05
Patent number
US07943639B2

Reaction notes

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