Pyridine → HCID 178497632、化合物

HRID 127674

反応式

HRID 127674 の反応式
[C:1]([C:5]1[CH:13]=[CH:12][CH:11]=[CH:10][C:6]=1[C:7]([OH:9])=O)([O:3][CH3:4])=[O:2].O=S(Cl)Cl.N1C=CC=CC=1.[C:24]([NH:31][NH2:32])(=[O:30])/[CH:25]=[CH:26]\[C:27]([OH:29])=O>C(COC)OC.C(Cl)(Cl)Cl>[C:1]([C:5]1[CH:13]=[CH:12][CH:11]=[CH:10][C:6]=1[C:7]([N:31]1[C:24](=[O:30])[CH:25]=[CH:26][C:27]([OH:29])=[N:32]1)=[O:9])([O:3][CH3:4])=[O:2]

参加物

7

反応物 4

HCID 1049PyridineHCID 20392Monomethyl phthalateHCID 24386Thionyl ChlorideHCID 12898265(Z)-4-hydrazinyl-4-oxobut-2-enoic acid

生成物 1

HCID 178497632HCID 178497632、化合物

試薬・触媒・溶媒 2

HCID 6212Chloroform溶媒HCID 80711,2-Dimethoxyethane溶媒

実験手順

Into a 100 ml round-bottomed flask fitted with a stirrer and reflux condenser there was charged 10.8 g (0.06 mole) of 2-carbomethoxybenzoic acid and 50 ml of chloroform. There was then added 7.8 G (0.066 mole) of SOCl2, followed by refluxing for 2 hr. The chloroform was then removed by distillation, followed by addition of 50 ml. of dimethoxyethane, 4.7 g (0.06 mole) of pyridine and 6.7 g (0.06 mole) of maleic hydrazide. The mixture was allowed to stir over night. The resulting reaction mixture was filtered to remove solids. Then the product was precipitated from the filtrate by addition of water and was recovered as a solid by filtration. The solid material was washed with hexane-ether solvent mixture and was filtered and dried. The yield was 6.6 g, m.p. 144°-145° C. Infrared and nuclear magnetic resonance spectra were consistent with the structure of the compound as named above.

後処理

  1. customInto a 100 ml round-bottomed flask fitted with a stirrer
  2. temperaturereflux condenser
  3. temperatureby refluxing for 2 hr
  4. customThe chloroform was then removed by distillation
  5. additionfollowed by addition of 50 ml
  6. customThe resulting reaction mixture
  7. filtrationwas filtered
  8. customto remove solids
  9. customThen the product was precipitated from the filtrate by addition of water
  10. filtrationwas recovered as a solid by filtration
  11. washThe solid material was washed with hexane-ether solvent mixture
  12. filtrationwas filtered
  13. customdried

出典と根拠

ORDレコード
ord-aae0653dcd0a4784b8f0b95a22ed7c42
出典データセット
uspto-grants-1981_03
特許番号
US04256884

関連ノート

読み込み中…