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HRID1579697

反应详情

EQUATION

反应方程式

HRID 1579697 的结构方程式

REACTANTS

反应物

2
结构：CC(C)=C[C@@H]1[C@H](C(=O)O)C1(C)C
HCID20755

Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)-, (1S,3R)-

C10H16O2

结构：CC[O-].[Na+]
HCID2723922

Ethanol, sodium salt

C2H5NaO

PRODUCTS

生成物

1
结构：CC(C)=C[C@@H]1[C@@H](C(=O)O)C1(C)C
HCID16747

Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R,3R)-

C10H16O2

PROCEDURE

实验过程

As in Example 1, n-butyl cis-chryanthemate (25.0 g) was treated with sodium ethoxide (2.0 g) at 150°C for 60 minutes while stirring. By gas chromatographic analysis, the product was confirmed to be a mixture of the cis-isomer and the trans-isomer in a weight ratio of 25 : 75. The product was hydrolyzed by a conventional procedure and cis-chrysanthemic acid was removed as dihydro-chrysanthemolactone to give trans-chrysanthemic acid (15.1 g).

WORKUP

后处理

  1. additiona mixture of the cis-isomer
  2. customwas removed as dihydro-chrysanthemolactone