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Ethyl chrysanthemumate

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Ethyl chrysanthemumate Basic information

Product Name:
Ethyl chrysanthemumate
Synonyms:
  • (1R,3S)-2,2-dimethyl-3-(2-methylprop-1-enyl)-1-cyclopropanecarboxylic acid ethyl ester
  • 2,2-DIMETHYL-3-(2-METHYL-1-PROPENYL)CYCLOPROPANE CARBOXYLIC ACID ETHYL ESTER
  • 2,2-DIMETHYL-3-(1-ISOBUTENYL)CYCLOPROPANE-1-CARBOXYLIC ACID ETHYL ESTER
  • ethyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate
  • CHRYSANTHEMUM MONOCARBOXYLIC ACID ETHYL ESTER
  • CHRYSANTHEMYLMONOCARBOXYLIC ACID ETHYL ESTER
  • ETHYL CHRYSANTHEMATE
  • ETHYL CHRYSANTHEMUMATE
CAS:
97-41-6
MF:
C12H20O2
MW:
196.29
EINECS:
202-579-7
Product Categories:
  • Cyclopropanes
  • Simple 3-Membered Ring Compounds
  • Pharmaceutical Intermediates
Mol File:
97-41-6.mol
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Ethyl chrysanthemumate Chemical Properties

Boiling point:
112 °C10 mm Hg(lit.)
Density 
0.906 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.461(lit.)
Flash point:
184 °F
storage temp. 
2-8°C
form 
Liquid
color 
Yellow
BRN 
2045740
CAS DataBase Reference
97-41-6(CAS DataBase Reference)
NIST Chemistry Reference
Ethyl chrysanthemate(97-41-6)
EPA Substance Registry System
Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, ethyl ester (97-41-6)
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Safety Information

Safety Statements 
24/25
WGK Germany 
2
RTECS 
GZ1727000
TSCA 
Yes
HS Code 
29162090

MSDS

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Ethyl chrysanthemumate Usage And Synthesis

Chemical Properties

clear colorless to yellow liquid

Synthesis Reference(s)

Tetrahedron Letters, 22, p. 1783, 1981 DOI: 10.1016/S0040-4039(01)90438-1
Synthesis, p. 600, 1976 DOI: 10.1055/s-1976-24132

Purification Methods

Purify the ester by vacuum distillation. The free trans-acid has m 54o (from EtOAc), and the free cis-acid has m 113-116o (from EtOAc). The 4-nitrophenyl ester has m 44-45o (from pet ether) [Campbell & Harper J Chem Soc 283 1945, IR: Allen et al. J Org Chem 22 1291 1957]. [Beilstein 9 II 45.]

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