Carbamate → HCID 178467450、化合物

HRID 2082643ノート

反応式

HRID 2082643 の反応式
[CH2:1]([O:3][C:4]([NH:6][C:7](=[O:11])OCC)=S)[CH3:2].C(=O)([O-])[O-].[K+].[K+].ClC1N=C(OCC)[N:22]=[C:21]([N:28]([CH3:30])[CH3:29])[N:20]=1.[Na].C(=O)([O-])N.ClC1N=C(Cl)N=C(N(C)C)N=1>O.C(O)C>[CH3:29][N:28]([CH3:30])[C:21]1[N:22]=[C:4]([O:3][CH2:1][CH3:2])[NH:6][C:7](=[O:11])[N:20]=1

参加物

9

反応物 6

HCID 276CarbamateHCID 11430Potassium CarbonateHCID 169852,4-Dichloro-6-(dimethylamino)-1,3,5-triazineHCID 3457746Ethyl ethoxythiocarbonylcarbamateHCID 5360545SodiumHCID 233381422-Chloro-4-ethoxy-6-dimethylamino-1,3,5-triazine

生成物 1

HCID 178467450HCID 178467450、化合物

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

反応条件

温度
-40 °C

実験手順

Ethyl ethoxythiocarbonylcarbamate (1 molar proportion) was added to a stirred solution of potassium carbonate in water (10 ml. per gram of carbamate). After 15 minutes stirring, the solution was filtered and dimethyl sulphate added dropwise to the filtrate with vigorous stirring over 45 minutes. The mixture was then stirred for 1 hour and extracted with light petroleum. The extracts were dried and cooled to -40° C., when the carbamate separated. Recrystallised from petroleum, the carbamate had a melting point of 38°-39° C. (b) N,N-Dimethylguanidine hydrochloride (3.23 g; 0.026 mol.) was added to a solution of sodium (0.61 g; 0.026 mol.) in anhydrous ethanol (50 ml.) and the mixture was heated under reflux for 30 minutes. The carbamate prepared in (a) above (5.0 g., 0.026 mol.) was then added and the mixture heated under reflux for 22 hours. The ethanol was removed, water (75 ml.) added, and the pH of the solution adjusted to 6 to 7 with acetic acid. The product was collected, washed with water, and recrystallised from ethanol to give 4-dimethylamino-6-ethoxy-1,3,5-triazin-2-one.

後処理

  1. filtrationthe solution was filtered
  2. additiondimethyl sulphate added dropwise to the filtrate
  3. stirringwith vigorous stirring over 45 minutes
  4. stirringThe mixture was then stirred for 1 hour
  5. extractionextracted with light petroleum
  6. customThe extracts were dried
  7. customwhen the carbamate separated
  8. customRecrystallised from petroleum
  9. temperaturethe mixture was heated
  10. temperatureunder reflux for 30 minutes
  11. additionwas then added
  12. temperaturethe mixture heated
  13. temperatureunder reflux for 22 hours
  14. customThe ethanol was removed
  15. additionwater (75 ml.) added
  16. customThe product was collected
  17. washwashed with water
  18. customrecrystallised from ethanol

出典と根拠

ORDレコード
ord-67e8774646044b929977253ff5a2ce63
出典データセット
uspto-grants-1978_04
特許番号
US04082536

反応ノート

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