Hydrochloric Acid → Diethyl 5-nitro-2-[2'-hydroxy-6'-sulphonaphthylazo]-phenylphosphonate

HRID 1277855

反応式

HRID 1277855 の反応式
Br[C:2]1[CH:7]=[C:6]([N+:8]([O-:10])=[O:9])[CH:5]=[CH:4][C:3]=1[N:11]=[N:12][C:13]1[C:22]2[C:17](=[CH:18][C:19]([S:23]([O-:26])(=[O:25])=[O:24])=[CH:20][CH:21]=2)[CH:16]=[CH:15][C:14]=1[OH:27].[Na+].[CH2:29]([O:31][P:32]([OH:36])[O:33][CH2:34][CH3:35])[CH3:30].Cl>O>[N+:8]([C:6]1[CH:5]=[CH:4][C:3]([N:11]=[N:12][C:13]2[C:22]3[C:17](=[CH:18][C:19]([S:23]([OH:26])(=[O:25])=[O:24])=[CH:20][CH:21]=3)[CH:16]=[CH:15][C:14]=2[OH:27])=[C:2]([P:32](=[O:36])([O:33][CH2:34][CH3:35])[O:31][CH2:29][CH3:30])[CH:7]=1)([O-:10])=[O:9]

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 12977Ethyl phosphite, (C2H5O)2(OH)PHCID 136359179Sodium 1-(2'-bromo-4'-nitrophenylazo)-2-hydroxy-6-naphthylsulphonate

生成物 1

HCID 136034815Diethyl 5-nitro-2-[2'-hydroxy-6'-sulphonaphthylazo]-phenylphosphonate

試薬・触媒・溶媒 1

HCID 962Water溶媒2 回

実験手順

27 parts of sodium 1-(2'-bromo-4'-nitrophenylazo)-2-hydroxy-6-naphthylsulphonate are stirred with 130 ml of water, and 20 parts of copper sulphate 5-hydrate in 70 parts of water are added. The pH value is adjusted to 7-8 and the mixture is stirred for one hour. Thereafter, 35 parts of phosphorous acid diethyl ester are added dropwise at pH 8. The mixture is subsequently stirred at room temperature for 4 hours and acidified with hydrochloric acid. The precipitate is filtered off, washed and dried and gives 23 parts of diethyl 5-nitro-2-[2'-hydroxy-6'-sulphonaphthylazo]-phenylphosphonate almost free from starting compounds and by-products.

後処理

  1. additionare added
  2. stirringThe mixture is subsequently stirred at room temperature for 4 hours
  3. filtrationThe precipitate is filtered off
  4. washwashed
  5. customdried

出典と根拠

ORDレコード
ord-adcdd8f9c6694af197811407fae52c96
出典データセット
uspto-grants-1981_07
特許番号
US04279813

関連ノート

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