Triphenylphosphine → HCID 15895694, compound

HRID 1857606Notes

Reaction equation

HRID 1857606 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH2:11][CH2:10][C@H:9]1[CH2:14][CH2:15][OH:16])=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:17][C:18]1[CH:27]=[C:26]2[C:21]([C:22](O)=[C:23]([C:29]3[CH:34]=[C:33]([CH3:35])[CH:32]=[C:31]([CH3:36])[CH:30]=3)[C:24](=[O:28])[NH:25]2)=[CH:20][C:19]=1[N+:38]([O-:40])=[O:39].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH2:11][CH2:10][C@H:9]1[CH2:14][CH2:15][O:16][C:22]1[C:21]2[C:26](=[CH:27][C:18]([Cl:17])=[C:19]([N+:38]([O-:40])=[O:39])[CH:20]=2)[NH:25][C:24](=[O:28])[C:23]=1[C:29]1[CH:30]=[C:31]([CH3:36])[CH:32]=[C:33]([CH3:35])[CH:34]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 1514243(S)-1-N-Boc-piperidine-2-ethanolHCID 547112387-chloro-3-(3,5-dimethylphenyl)-4-hydroxy-6-nitro-1H-quinolin-2-one

Product 1

HCID 15895694HCID 15895694, compound

Procedure

To a solution of (S)-2-(2-hydroxyethyl)-piperidine-1-carboxylic acid tert-butyl ester (0.864 g in 38 mL dry tetrahydrofuran) was added 1.56 g of 7-chloro-3-(3,5-dimethylphenyl)-4-hydroxy-6-nitro-1H-quinolin-2-one [see Example 9] followed by 1.19 g of triphenylphosphine and the mixture stirred at room temperature. To this was added 0.72 mL of diethyl azodicarboxylate (DEAD) and stirring was continued for 64 hours. At this time the solvents were removed in vacuo and the residue purified by flash chromatography on silica gel (hexane:ethyl acetate, 6:4) to give the title compound, 1.56 g.

Workup

  1. stirringstirring
  2. customAt this time the solvents were removed in vacuo
  3. customthe residue purified by flash chromatography on silica gel (hexane:ethyl acetate, 6:4)

Sources & evidence

ORD record
ord-97bcf282d52f4e4e9a662c112a279649
Source dataset
uspto-grants-2000_11
Patent number
US06147088

Reaction notes

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