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Diisopropylethylamine → HCID 58911823, compound

HRID 1296188
Notes
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Reaction equation

HRID 1296188 reaction equation
Cl.[NH2:2][CH:3]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)[C:4]#[N:5].[C:12]([N:29]=[C:30]=[S:31])([O:14][CH2:15][CH:16]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:22]2[C:17]1=[CH:18][CH:19]=[CH:20][CH:21]=2)=[O:13].C(N(C(C)C)C(C)C)C.C(=O)(O)[O-].[Na+]>C(Cl)Cl>[NH2:5][C:4]1[S:31][C:30]([NH:29][C:12]([O:14][CH2:15][CH:16]2[C:17]3[C:22](=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:23]3[C:28]2=[CH:27][CH:26]=[CH:25][CH:24]=3)=[O:13])=[N:2][C:3]=1[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 27237172-Phenylglycinonitrile hydrochlorideHCID 4154759Fmoc isothiocyanate

Product 1

HCID 58911823HCID 58911823, compoundYield 48%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

A suspension of α-aminophenylacetonitrile hydrochloride (3.19 g, 18.9 mmol) and Fmoc-isothiocyanate (5.31 g, 18.9 mmol) in DCM was treated with ethyldiisopropylamine (3.62 ml, 20.8 mmol) at 0° C. for 1 hr and then at ambient temperature for 3 hr. The mixture was poured into saturated aqueous sodium bicarbonate and extracted three times into ethyl acetate. The combined organic phases were washed with water and brine, and dried over sodium sulfate and concentrated in vacuo. Flash chromatography on silica gel (ethyl acetate/hexanes) yielded 5-amino-2-(Fmoc-amino)-4-phenylthiazole (3.75 g, 48%).

Workup

  1. extractionextracted three times into ethyl acetate
  2. washThe combined organic phases were washed with water and brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-ce402e7d6e784c00a5fb0b238066a8bb
Source dataset
uspto-grants-2007_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07244851B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes