N-bromobutanimide → HCID 59580456, compound

HRID 1803430Notes

Reaction equation

HRID 1803430 reaction equation
[C:1]([O:5][C:6](=[O:20])[N:7]([CH3:19])[C:8]1[S:12][C:11]([C:13]2[CH:14]=[N:15][CH:16]=[CH:17][CH:18]=2)=[N:10][CH:9]=1)([CH3:4])([CH3:3])[CH3:2].[Br:21]N1C(=O)CCC1=O>C(#N)C>[C:1]([O:5][C:6](=[O:20])[N:7]([C:8]1[S:12][C:11]([C:13]2[CH:14]=[N:15][CH:16]=[CH:17][CH:18]=2)=[N:10][C:9]=1[Br:21])[CH3:19])([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 67184N-bromobutanimideHCID 59580665HCID 59580665, compound

Product 1

HCID 59580456HCID 59580456, compoundYield 64.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of methyl-(2-pyridin-3-yl-thiazol-5-yl)-carbamic acid tert-butyl ester (100 mg, 0.34 mmol) in acetonitrile (2 mL) was added N-bromosuccinimide (122 mg, 0.68 mmol) in one portion and the reaction mixture was stirred for 1 h. The reaction mixture was concentrated and the crude product was purified by silica gel chromatography (0 to 100% ethyl acetate/hexanes) to give the desired product as a white solid (81 mg, 64%): mp 88-91°C.; IR (KBr) 1715 cm−1; 1H NMR (300 MHz, CDCl3) δ 9.11 (s, 1H), 8.70 (d, J=4.2 Hz, 1H), 8.28-8.17 (m, 1H), 7.42 (dd, J=8.1, 4.8 Hz, 1H), 3.27 (s, 3H), 1.48 (s, 9H); ESIMS m/z 372 (M+2).

Workup

  1. concentrationThe reaction mixture was concentrated
  2. customthe crude product was purified by silica gel chromatography (0 to 100% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-c817485538d444ada751301e87049d32
Source dataset
uspto-grants-2013_01
Patent number
US08350044B2

Reaction notes

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