Pyridine → HCID 178497632, 화합물

HRID 1446947

반응식

HRID 1446947 반응식
[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]

참가 물질

7

반응물 4

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

생성물 1

HCID 178497632HCID 178497632, 화합물

시약·촉매·용매 2

HCID 6212Chloroform용매HCID 80711,2-Dimethoxyethane용매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-5397526d64404379a863e61deeb8a066
출처 데이터셋
uspto-grants-1982_02
특허 번호
US04314843

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