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Pyridine → trans-6-pentafluoroethyl-2,2-bisfluoromethyl-3,4-dihydro-4-[(1,6-dihydro-1-methyl-6-oxo-3-pyridazinyl)oxy]-2H-1-benzopyran-3-ol

HRID 977615
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인쇄 미리보기

반응식

HRID 977615 반응식
[O:1]1[CH:7]2[CH:2]1[C:3]([CH2:21][F:22])([CH2:19][F:20])[O:4][C:5]1[CH:11]=[CH:10][C:9]([C:12]([F:18])([F:17])[C:13]([F:16])([F:15])[F:14])=[CH:8][C:6]=12.[OH:23][C:24]1[CH:29]=[CH:28][C:27](=[O:30])[N:26]([CH3:31])[N:25]=1.N1C=CC=CC=1>C(O)C>[F:18][C:12]([F:17])([C:9]1[CH:10]=[CH:11][C:5]2[O:4][C:3]([CH2:21][F:22])([CH2:19][F:20])[C@@H:2]([OH:1])[C@H:7]([O:23][C:24]3[CH:29]=[CH:28][C:27](=[O:30])[N:26]([CH3:31])[N:25]=3)[C:6]=2[CH:8]=1)[C:13]([F:15])([F:16])[F:14]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 1049PyridineHCID 158717923,4-epoxy-6-pentafluoroethyl-2,2-bisfluoromethyl-3,4-dihydro-2H-1-benzopyranHCID 178481946HCID 178481946, 화합물

생성물 1

HCID 86750615trans-6-pentafluoroethyl-2,2-bisfluoromethyl-3,4-dihydro-4-[(1,6-dihydro-1-methyl-6-oxo-3-pyridazinyl)oxy]-2H-1-benzopyran-3-ol수율 75.4%

시약·촉매·용매 1

HCID 702
Ethanol
용매

실험 절차

A mixture of 0.58 g of 3,4-epoxy-6-pentafluoroethyl-2,2-bisfluoromethyl-3,4-dihydro-2H-1-benzopyran, 0.22 g of 3-hydroxy-1-methyl-1,6-dihydropyridazin-6-one, 0.16 g of pyridine and 5 ml of ethanol was refluxed for 5 hours. The solvent was distilled off and the resultant residue was purified using silica gel column chromatography (developing solution, MeOH:CH2Cl2 =1:99) to obtain 0.60 g of trans-6-pentafluoroethyl-2,2-bisfluoromethyl-3,4-dihydro-4-[(1,6-dihydro-1-methyl-6-oxo-3-pyridazinyl)oxy]-2H-1-benzopyran-3-ol represented by the following formula having a melting point of 189°-191° C. in Example 20.

후처리

  1. temperaturewas refluxed for 5 hours
  2. distillationThe solvent was distilled off
  3. customthe resultant residue was purified

출처 및 근거

ORD 기록
ord-05762580501b463489b03158332118f9
출처 데이터셋
uspto-grants-1997_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05614633

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