Formamidine acetate → HCID 70926937, compound

HRID 1042410Notes

Reaction equation

HRID 1042410 reaction equation
[CH3:1][C:2]1[CH2:7][CH2:6][CH2:5][C:4]([CH3:9])([CH3:8])[C:3]=1[CH2:10][CH2:11][C:12](=O)[CH3:13].[C:15](O)(=O)C.[CH:19]([NH2:21])=[NH:20]>C(O)CCC>[CH3:1][C:2]1[CH2:7][CH2:6][CH2:5][C:4]([CH3:9])([CH3:8])[C:3]=1[CH2:10][CH2:11][C:12]1[CH:13]=[CH:15][N:21]=[CH:19][N:20]=1

Participants

4

Reactant 2

HCID 160693Formamidine acetateHCID 519382Dihydro-beta-ionone

Product 1

HCID 70926937HCID 70926937, compound

Reagents, catalysts & solvents 1

HCID 2631-ButanolSolvent

Conditions

Temperature
130 °C

Procedure

A 100 mL reaction flask is charged with 4-(2,6,6-trimethyl-cyclohex-1-enyl)-butan-2-one (10 g, 0.05 mol, commercially available at IFF), formamidine acetate (26 g, 0.3 mol), and butanol (50 mL). The reaction mixture is heated to 130° C. and stirred for 24 hours. The crude mass is washed once with aqueous sulfuric acid (10%, 100 mL) followed by twice with brine (30 mL). Butanol is recovered by roto-evaporation. The crude product is further purified with liquid chromatography (Biotage® system) and then crystallized. Product 4-[2-(2,6,6-trimethyl-cyclohex-1-enyl)-ethyl]-pyrimidine (˜10 g) is obtained.

Workup

  1. customA 100 mL reaction flask
  2. washThe crude mass is washed once with aqueous sulfuric acid (10%, 100 mL)
  3. customButanol is recovered by roto-evaporation
  4. customThe crude product is further purified with liquid chromatography (Biotage® system)
  5. customcrystallized

Sources & evidence

ORD record
ord-2bdfcfd4334a4664b085299c9bdf88b7
Source dataset
uspto-grants-2013_10
Patent number
US08557876B2

Reaction notes

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