反応式
C([C:5]([CH2:7][CH:8]([CH3:10])[CH3:9])=[O:6])C(C)C.[CH3:11][C:12](=[C:14](C)C)C.ClC(Cl)C(Cl)=[O:20]>[Zn]>[CH3:11][C:12]1([CH3:14])[C:8]([CH3:9])([CH3:10])[CH:7]1[C:5]([OH:6])=[O:20]参加物
実験手順
Experiments 4, 5, 6, 7 and 8 were conducted in the same way as experiments 2 and 3. The details are stated in the table; the zinc particles had a largest dimension below 0.01 mm, see column 5. The diisobutyl ketone used in experiments 6 and 7 had a purity of 89 and 90%, respectively. At the end of experiments 4, 5, 6 and 7 the reaction mixture was free from dispersed zinc, see column 10, indicating that the zinc had been fully converted. The conversions of 2,3-dimethyl-2-butene and dichloroacetyl chloride are stated in columns 11 and 12, respectively. The yields of 2,2,3,3-tetramethylcyclopropanecarboxylic acid, presented in column 13, are slightly higher than that obtained in experiment 2. In the experiments 6 and 7 less brownish tarry material was formed than in the experiments 4 and 5 and the yield and purity of the TMCA formed were higher. The mixture obtained at the end of experiment 8 contained dispersed zinc and the yield of 2,2,3,3-tetramethylcyclopropanecarboxylic acid was only 49%, the molar ratio of zinc to dichloroacetyl chloride being 1.5.
出典と根拠
- ORDレコード
- ord-7494b37c1c1241b0a1eaccb73a6ceb13
- 出典データセット
- uspto-grants-1977_12
- 特許番号
- US04064174
関連ノート
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