1,3-Diphenyl-2-propanone → 3,5-diphenyl-4(1H)-pyridone

HRID 261771

反応式

HRID 261771 の反応式
[Na][Na].O[CH:4]=[C:5]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[C:6](=[O:16])[C:7]([C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)=[CH:8]O.C1(CC(=O)CC2C=CC=CC=2)C=CC=CC=1.C(OCC)=O.C[O-].[Na+].CC(=O)C=C=C.C1(C2C(=O)C(C3C=CC=CC=3)=COC=2)C=CC=CC=1.O1C=CC=CC1=O.C([O-])(=O)C.[NH4+:83]>>[C:17]1([C:5]2[C:6](=[O:16])[C:7]([C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)=[CH:8][NH:83][CH:4]=2)[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1

参加物

10

実験手順

The compounds of this invention can be prepared by various synthetic routes. Benary and Bitter, Ber. 61, 1058 (1928) taught the synthesis of an intermediate disodium salt of 1,5-dihydroxy-2,4-diphenyl-1,4-pentadien-3-one by the condensation of 1,3-diphenyl-2-propanone with ethyl formate in the presence of sodium methoxide. The intermediate pentadienone is neutralized by strong acid and forms 3,5-diphenyl-4-pyrone. Reaction of the pyrone with ammonium acetate at an elevated temperature produces 3,5-diphenyl-4(1H)-pyridone.

後処理

  1. customThe compounds of this invention can be prepared by various synthetic routes

出典と根拠

ORDレコード
ord-4b6acbf9a2b94c81a270b9f9ecf40673
出典データセット
uspto-grants-1979_05
特許番号
US04152136

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