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Nitrogen → HCID 86709516, compound

HRID 1848506
Notes
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Reaction equation

HRID 1848506 reaction equation
[OH:1][CH:2]1[C:6]2([CH2:11][CH2:10][N:9]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:8][CH2:7]2)[C:5](=[O:19])[NH:4][CH:3]1[CH3:20].Br[C:22]1[CH2:26][O:25][C:24](=[O:27])[CH:23]=1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C([O-])([O-])=O.[K+].[K+].N#N.O>CC([O-])=O.CC([O-])=O.[Pd+2].O1CCOCC1>[OH:1][CH:2]1[C:6]2([CH2:7][CH2:8][N:9]([C:12]([O:14][C:15]([CH3:16])([CH3:18])[CH3:17])=[O:13])[CH2:10][CH2:11]2)[C:5](=[O:19])[N:4]([C:22]2[CH2:26][O:25][C:24](=[O:27])[CH:23]=2)[CH:3]1[CH3:20]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

9

Reactant 6

HCID 947NitrogenHCID 962WaterHCID 11430Potassium CarbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 117895364-bromo-5H-furan-2-oneHCID 86709515HCID 86709515, compound

Product 1

HCID 86709516
HCID 86709516, compound

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

To a round bottom flask was charged tert-butyl 4-hydroxy-3-methyl-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate (1000 mg, 3.52 mmol), 4-bromofuran-2(5H)-one (860 mg, 5.28 mmol), Pd(OAc)2 (79 mg, 0.352 mmol), Xantphos (305 mg, 0.528 mmol), and K2CO3 (972 mg, 7.03 mmol). The flask was sealed, vacuumed and back filled with N2 and filled with dioxane (14 mL) and water (190 μL, 10.6 mmol). The reaction mixture was heated at 90° C. overnight, and filtered through CELITE®. The filtrate was evaporated to give the crude product, which was purified by column chromatography (0-10% MeOH/DCM, came out at 6% MeOH/DCM, followed by another column with 0-100% EtOAc/hex) to give the title compound. LC/MS: [(M+1)]+=367

Workup

  1. customThe flask was sealed
  2. filtrationfiltered through CELITE®
  3. customThe filtrate was evaporated
  4. customto give the crude product, which
  5. customwas purified by column chromatography (0-10% MeOH/DCM

Sources & evidence

ORD record
ord-8aa14531c4014c8ea15801b5086f0634
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08952166B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes