Tributylphosphine → HCID 11978719, compound

HRID 1851606Notes

Reaction equation

HRID 1851606 reaction equation
[S:1]1[CH:5]=[CH:4][N:3]=[C:2]1[C:6]1[NH:7][C:8]2[C:13]([CH:14]=1)=[CH:12][CH:11]=[CH:10][C:9]=2[CH:15](O)[CH3:16].[CH3:18][N:19]1[CH:23]=[CH:22][N:21]=[C:20]1[SH:24].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>O1CCCC1.O>[CH3:18][N:19]1[CH:23]=[CH:22][N:21]=[C:20]1[S:24][CH:15]([C:9]1[CH:10]=[CH:11][CH:12]=[C:13]2[C:8]=1[NH:7][C:6]([C:2]1[S:1][CH:5]=[CH:4][N:3]=1)=[CH:14]2)[CH3:16]

Participants

7

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 57901676HCID 57901676, compoundHCID 178480602HCID 178480602, compound

Product 1

HCID 11978719HCID 11978719, compoundYield 89%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of 1-[2-(1,3-thiazol-2-yl)-1H-indol-7-yl]ethanol (0.089 g), 1-methyl-1H-imidazole-2-thiol (0.046 g) and tributylphosphine (0.458 g) in tetrahydrofuran (7 mL) was stirred, 1,1′-(azodicarbonyl)dipiperidine (0.584 g) was added, and the mixture was stirred at room temperature for 1 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed successively with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=30:70-70:30) to give the title compound (0.110 g, yield 89%) as colorless crystals.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed successively with water and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=30:70-70:30)

Sources & evidence

ORD record
ord-06eafec631ad47dba9a2ea890268271b
Source dataset
uspto-grants-2015_02
Patent number
US08957070B2

Reaction notes

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