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HRID1198857

反应详情

EQUATION

反应方程式

HRID 1198857 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：BrP(Br)Br
HCID24614

Phosphorus tribromide

Br3P

PRODUCTS

生成物

1
结构：CC(C)=CC1C(C(=O)O)C1(C)C
HCID2743

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

C10H16O2

收率 90%

AUXILIARIES

试剂、催化剂与溶剂

1
结构：Cc1ccccc1
溶剂HCID1140

Toluene

C7H8

PROCEDURE

实验过程

To a solution of cis chrysanthemic acid (1.0 g) in toluene (9 g) was added phosphorus tribromide (0.11 g) at room temperature under a nitrogen atmosphere. Irradiation with a xenon lamp (500 W, Pyrex glass filter) was made for 30 minutes under stirring. After the irradiation was over, similar after-treatment as in Example 1 was applied to obtain chrysanthemic acid (0.90 g). The isomer ratio of the product was: cis, 10.0%; and trans, 90.0%.

WORKUP

后处理

  1. customIrradiation with a xenon lamp
  2. filtration(500 W, Pyrex glass filter)
  3. customAfter the irradiation