HCID 178418573, compound → HCID 178441847, compound

HRID 487054Notes

Reaction equation

HRID 487054 reaction equation
[CH2:1]([C:5]1[NH:6][C:7]2[C:12]([C:13](=[O:15])[N:14]=1)=[CH:11][C:10]([CH:16]=[O:17])=[CH:9][CH:8]=2)[CH2:2][CH2:3][CH3:4].[CH3:18][Mg]Br>O1CCCC1.C(OCC)C>[CH2:1]([C:5]1[NH:6][C:7]2[C:12]([C:13](=[O:15])[N:14]=1)=[CH:11][C:10]([CH:16]([OH:17])[CH3:18])=[CH:9][CH:8]=2)[CH2:2][CH2:3][CH3:4]

Participants

5

Reactant 2

HCID 178418573HCID 178418573, compoundHCID 178441857HCID 178441857, compound

Product 1

HCID 178441847HCID 178441847, compound

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of 0.60 g of 2-butyl-1,4-dihydro-4-oxo-6-quinazolinecarboxaldehyde in 30 ml of dry tetrahydrofuran, cooled to 0° C. is added dropwise, 2.61 ml of a 3.0M solution of methylmagnesium bromide in diethyl ether. The reaction is stirred at 0° C. for 30 minutes and then quenched with 10 ml of aqueous ammonium chloride. After diluting with 10 ml of water, the reaction mixture is extracted with 9:1 chloroform-methanol. The combined extracts are dried with magnesium sulfate, filtered and concentrated to yield 0.64 g of the desired product.

Workup

  1. additionis added dropwise
  2. customquenched with 10 ml of aqueous ammonium chloride
  3. additionAfter diluting with 10 ml of water
  4. extractionthe reaction mixture is extracted with 9:1 chloroform-methanol
  5. dry with materialThe combined extracts are dried with magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-d2da8b328fa14a7c94cc7d2fd6e558d3
Source dataset
uspto-grants-1994_03
Patent number
US05294611

Reaction notes

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