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Isobutanol → 3-[4-(4-Cyano-3-fluoro-phenyl)-piperazine-1-carbonyl]-4-isobutoxy-benzenesulfonamide

HRID 2251281
Notes
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Reaction equation

HRID 2251281 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]2[CH2:14][CH2:13][N:12]([C:15]([C:17]3[CH:18]=[C:19]([S:24]([NH2:27])(=[O:26])=[O:25])[CH:20]=[CH:21][C:22]=3[OH:23])=[O:16])[CH2:11][CH2:10]2)=[CH:5][C:4]=1[F:28])#[N:2].[CH3:29][CH:30]([CH3:33])[CH2:31]O.C1(P(C2C=CC=CC=2)C2C=CC=CN=2)C=CC=CC=1.N(C(OC(C)(C)C)=O)=NC(OC(C)(C)C)=O>C1COCC1.C(OCC)(=O)C>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]2[CH2:10][CH2:11][N:12]([C:15]([C:17]3[CH:18]=[C:19]([S:24]([NH2:27])(=[O:25])=[O:26])[CH:20]=[CH:21][C:22]=3[O:23][CH2:29][CH:30]([CH3:33])[CH3:31])=[O:16])[CH2:13][CH2:14]2)=[CH:5][C:4]=1[F:28])#[N:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 6560IsobutanolHCID 97268Di-tert-butyl azodicarboxylateHCID 6218932-PyridyldiphenylphosphineHCID 690384423-[4-(4-Cyano-3-fluoro-phenyl)-piperazine-1-carbonyl]-4-hydroxy-benzenesulfonamide2×

Product 1

HCID 690383983-[4-(4-Cyano-3-fluoro-phenyl)-piperazine-1-carbonyl]-4-isobutoxy-benzenesulfonamide

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

To 0.1 mmol (3-[4-(4-cyano-3-fluoro-phenyl)-piperazine-1-carbonyl]-4-hydroxy benzenesulfonamide (compound 6.38), 0.5 mmol 2-methyl-1-propanol and 0.3 mmol diphenyl-2-pyridylphosphine in 4 ml THF was added 0.3 mmol di-tert-butyl azodicarboxylate, and the mixture was stirred at 60° C. for 4 h. The mixture was then diluted with ethyl acetate and washed twice with 5 M aq HCl and then with saturated aq NaCl solution. The organic phase was then dried with Na2SO4, and concentrated in vacuo. The residue was triturated in ether to afford the title compound. MS (m/e): 459.2 ([M−H]−, 100%)

Workup

  1. washwashed twice with 5 M aq HCl
  2. dry with materialThe organic phase was then dried with Na2SO4
  3. concentrationconcentrated in vacuo
  4. customThe residue was triturated in ether

Sources & evidence

ORD record
ord-973ec6724b994df7b87858a86aaf5ca0
Source dataset
uspto-grants-2008_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07319099B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes