Acetone → 2-(6-Carboxy-2-cis-hexenyl)cyclopent-3-en-1-one

HRID 67016

反応式

HRID 67016 の反応式
[OH:1][CH:2]1[CH2:6][CH:5]=[CH:4][CH:3]1/[CH:7]=[CH:8]\[CH2:9][CH2:10][CH2:11][CH2:12][C:13]([OH:15])=[O:14].CC(C)=O.[Cr](O)(O)(=O)=O>S(=O)(=O)(O)O>[C:13]([CH2:12][CH2:11][CH2:10][CH2:9]/[CH:8]=[CH:7]\[CH:3]1[CH:4]=[CH:5][CH2:6][C:2]1=[O:1])([OH:15])=[O:14]

参加物

5

実験手順

A solution of 3.2 g. (0.5 mole) of 1-hydroxy-2-(6-carboxy-2-cis-hexenyl)cyclopent-3-ene (Example 1132) in 60 ml. of reagent acetone is treated dropwise with a total of 6 ml. of 8 N chromic acid in sulfuric acid at 0° C. The oxidation is rather slow. The resulting mixture is dissolved in 200 ml. of water and the solution is extracted with six 50 ml portions of ether. The combined ethereal extracts are dried over sodium sulfate and the solvent is evaporated at reduced pressure to yield the product as a yellow oil.

後処理

  1. customat 0° C
  2. dissolutionThe resulting mixture is dissolved in 200 ml
  3. extractionof water and the solution is extracted with six 50 ml portions of ether
  4. dry with materialThe combined ethereal extracts are dried over sodium sulfate
  5. customthe solvent is evaporated at reduced pressure

出典と根拠

ORDレコード
ord-13f5871605f04517a30b3a728b0bbfa8
出典データセット
uspto-grants-1982_08
特許番号
US04343949

関連ノート

読み込み中…