1,8-Diazabicyclo(5.4.0)undec-7-ene → Tert butyl 4-iodo-1-methyl-7-oxo-6-azabicyclo[3.2.1]oct-3-ene-6-carboxylate

HRID 74996Notes

Reaction equation

HRID 74996 reaction equation
[I:1][CH:2]1[CH:8]2[CH2:9][C:5]([CH3:18])([C:6](=[O:17])[N:7]2[C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:4][CH2:3]1.N12CCCN=C1CCCCC2>C1(C)C=CC=CC=1>[I:1][C:2]1[CH:8]2[CH2:9][C:5]([CH3:18])([C:6](=[O:17])[N:7]2[C:10]([O:12][C:13]([CH3:15])([CH3:14])[CH3:16])=[O:11])[CH2:4][CH:3]=1

Participants

4

Reactant 2

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 68008486Tert-butyl 4-iodo-1-methyl-7-oxo-6-azabicyclo[3.2.1]octane-6-carboxylate2×

Product 1

HCID 86667435Tert butyl 4-iodo-1-methyl-7-oxo-6-azabicyclo[3.2.1]oct-3-ene-6-carboxylate

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a solution of tert-butyl 4-iodo-1-methyl-7-oxo-6-azabicyclo[3.2.1]octane-6-carboxylate, 52d, (7.6 g, 20.8 mmol) in 100 mL of toluene was added 1,8-diazabicyclo[5.4.0]undec-7-ene (6.2 mL, 41.6 mmol). The reaction was warmed to reflux and stirred overnight. The reaction was concentrated in vacuo and the resulting residue was purified by silica gel chromatography (4:1 Hexanes:EtOAc), yielding 4.9 g of the desired product, 52e.

Workup

  1. temperatureThe reaction was warmed
  2. temperatureto reflux
  3. concentrationThe reaction was concentrated in vacuo
  4. customthe resulting residue was purified by silica gel chromatography (4:1 Hexanes:EtOAc)

Sources & evidence

ORD record
ord-f6ec80e78160492bb71c71bd04ea671f
Source dataset
uspto-grants-2014_09
Patent number
US08829007B2

Reaction notes

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