Hydrochloric Acid → Dimethylmalonyl Dichloride

HRID 258971

反応式

HRID 258971 の反応式
[CH3:1][C:2]([CH3:9])([C:6](O)=[O:7])[C:3](O)=[O:4].S(Cl)([Cl:12])=O.[ClH:14].S(=O)=O>>[CH3:1][C:2]([CH3:9])([C:6]([Cl:12])=[O:7])[C:3]([Cl:14])=[O:4]

参加物

5

反応物 4

HCID 313Hydrochloric AcidHCID 1119Sulfur DioxideHCID 11686Dimethylmalonic acid2 回HCID 24386Thionyl Chloride

生成物 1

HCID 4523180Dimethylmalonyl Dichloride

実験手順

To a 500 ml. one-necked flask equipped with reflux condenser with drying tube, is added 50 grams (0.38 mole) dimethylmalonic acid (Aldrich Chemical Co.) and 300 ml. thionyl chloride. The mixture is heated to reflux for about 1 hour during which time the dimethylmalonic acid is dissolved and hydrogen chloride and sulfur dioxide are evolved. The unreacted thionyl chloride is removed by distillation under reduced pressure. The residue is recrystallized twice from cyclohexane to yield a white solid, M.P. 186°-187° C.

後処理

  1. customone-necked flask equipped
  2. temperaturewith reflux condenser
  3. customwith drying tube
  4. temperatureThe mixture is heated
  5. dissolutionis dissolved
  6. customThe unreacted thionyl chloride is removed by distillation under reduced pressure
  7. customThe residue is recrystallized twice from cyclohexane
  8. customto yield a white solid, M.P. 186°-187° C.

出典と根拠

ORDレコード
ord-38581de9b1114be4935b945dafac826a
出典データセット
uspto-grants-1977_07
特許番号
US04035437

関連ノート

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