Benzaldehyde → L-Gulose

HRID 443964ノート

反応式

HRID 443964 の反応式
C(N(C1C=CC=CC=1)N=[CH:10][C@H:11]([C@H:13]([C@@H:15]([C@H:17]([CH2:19][OH:20])[OH:18])[OH:16])[OH:14])[OH:12])C1C=CC=CC=1.O.C(=[O:35])C1C=CC=CC=1.C(O)(=O)C1C=CC=CC=1>C(O)C>[O:20]=[CH:19][C@H:17]([C@H:15]([C@@H:13]([C@H:11]([CH2:10][OH:35])[OH:12])[OH:14])[OH:16])[OH:18]

参加物

6

反応物 4

HCID 240BenzaldehydeHCID 243Benzoic AcidHCID 962WaterHCID 67932689L-gulose benzylphenylhydrazone

生成物 1

HCID 80127L-Gulose

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

The L-gulose benzylphenylhydrazone was refluxed for three hours with 100 ml. of water and 20 ml. of ethanol containing 7.5 ml. of benzaldehyde and 0.8 grams of benzoic acid. After cooling, the solution was decanted from the crystals of benzaldehyde benzylphenylhydrazone and extracted several times with ether to remove the benzaldehyde and benzoic acid. The solution was then decolorized with activated carbon and concentrated under reduced pressure to a colorless syrup to yield 3.4 grams of syrupy L-gulose.

後処理

  1. temperatureAfter cooling
  2. customthe solution was decanted from the crystals of benzaldehyde benzylphenylhydrazone
  3. extractionextracted several times with ether
  4. customto remove the benzaldehyde and benzoic acid
  5. concentrationconcentrated under reduced pressure to a colorless syrup

出典と根拠

ORDレコード
ord-e82670fb0a964956a8e723d0592c3604
出典データセット
uspto-grants-1981_04
特許番号
US04262032

反応ノート

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