Triphenylphosphine → HCID 59497299, compound

HRID 1747351Notes

Reaction equation

HRID 1747351 reaction equation
[CH3:1][O:2][C:3](=[O:16])[CH2:4][CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[NH:8][C:7]1=[O:15].[C:17]([Si:21]([CH3:36])([CH3:35])[O:22][C:23]1[CH:24]=[C:25]2[C:30](=[CH:31][CH:32]=1)[C:29]([CH2:33]O)=[CH:28][CH:27]=[CH:26]2)([CH3:20])([CH3:19])[CH3:18].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1COCC1>[CH3:1][O:2][C:3](=[O:16])[CH2:4][CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[N:8]([CH2:33][C:29]2[C:30]3[C:25](=[CH:24][C:23]([O:22][Si:21]([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:36])[CH3:35])=[CH:32][CH:31]=3)[CH:26]=[CH:27][CH:28]=2)[C:7]1=[O:15]

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 59497358HCID 59497358, compoundHCID 59497482HCID 59497482, compound

Product 1

HCID 59497299HCID 59497299, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a stirred solution of 3-(2-oxo-2,3-dihydro-benzimidazol-1-yl)-propionic acid methyl ester (180 mg, 0.82 mmol) in THF (12 ml) was added [6-(tert-butyl-dimethyl-silanyloxy)-naphthalen-1-yl]-methanol (283 mg, 0.98 mmol) and triphenylphosphine (257 mg, 0.98 mmol). The DIAD (0.20 ml, 0.98 mmol) was then introduced in a dropwise manner and the resulting mixture was stirred at ambient temperature over night. Silica gel was added and the reaction mixture was concentrated to dryness. The resulting solid was purified via column chromatography (silica gel, 40% ethyl acetate/hexanes) to give 240 mg (60%) of the desired product as an oil which solidified on standing.

Workup

  1. additionSilica gel was added
  2. concentrationthe reaction mixture was concentrated to dryness
  3. customThe resulting solid was purified via column chromatography (silica gel, 40% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-3540f009fddf428abe1addc9cf843668
Source dataset
uspto-grants-2015_10
Patent number
US09150556B2

Reaction notes

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