Acetamide → 1,3,5-Triazine-2-carbonitrile, 4,6-dimethoxy-

HRID 1285081Notes

Reaction equation

HRID 1285081 reaction equation
[C-]#N.[K+].[C:4]([NH2:7])(=O)C.[Cl-].C[N+](C)(C)[C:11]1[N:16]=[C:15]([O:17][CH3:18])[N:14]=[C:13]([O:19][CH3:20])[N:12]=1>O>[C:4]([C:11]1[N:12]=[C:13]([O:19][CH3:20])[N:14]=[C:15]([O:17][CH3:18])[N:16]=1)#[N:7]

Participants

5

Reactant 3

HCID 178AcetamideHCID 9032Potassium CyanideHCID 131413314,6-Dimethoxy-N,N,N-trimethyl-1,3,5-triazin-2-aminium chloride

Product 1

HCID 23202681,3,5-Triazine-2-carbonitrile, 4,6-dimethoxy-Yield 38.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 26 g of potassium cyanide and 60 g of oven-dried acetamide was heated to 85°-90° C. To this melt was added 24 g of the product from Example 2 in portions over a period of 15-20 minutes. The resulting brown reaction solution was heated to 90°-100° C. for an additional one hour. When the solution had cooled to room temperature, water was added and the aqueous layer was extracted with ether and methylene chloride. The combined organic extracts were backwashed with several small portions of water, brine, and were then dried over magnesium sulfate and concentrated in vacuo to afford 6.5 g of 2-cyano-4,6-dimethoxy-1,3,5-triazine as a light yellow solid.

Workup

  1. temperaturewas heated to 85°-90° C
  2. temperatureThe resulting brown reaction solution was heated to 90°-100° C. for an additional one hour
  3. extractionthe aqueous layer was extracted with ether and methylene chloride
  4. dry with materialwere then dried over magnesium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a443bccd04e14c2fa7089f7dc0aaeb3b
Source dataset
uspto-grants-1986_01
Patent number
US04565567

Reaction notes

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