![](/CAS/20180906/GIF/121-29-9.gif)
PYRETHRIN 2 synthesis
- Product Name:PYRETHRIN 2
- CAS Number:121-29-9
- Molecular formula:C22H28O5
- Molecular Weight:372.45
![Ethyl chrysanthemumate](/CAS/GIF/97-41-6.gif)
97-41-6
238 suppliers
$10.00/5g
![PYRETHRIN 2](/CAS/20180906/GIF/121-29-9.gif)
121-29-9
81 suppliers
$120.00/1g
Yield:-
Steps:
Multi-step reaction with 9 steps
1.1: sodium hydride / mineral oil / 3 h / Inert atmosphere
2.1: potassium hydroxide / ethanol; water / 3 h
3.1: (S)-1-(1-Naphthyl)ethylamine / ethanol / 3 h / 20 °C
4.1: ozone / Acidic conditions
5.1: pyrrolidine / 1 h / 60 °C
6.1: potassium hydroxide / water; methanol; 5,5-dimethyl-1,3-cyclohexadiene / 16 h / 20 - 25 °C / Inert atmosphere
7.1: 1-methyl-1H-imidazole; p-toluenesulfonyl chloride; N-ethyl-N,N-diisopropylamine / acetonitrile / 0.5 h / 0 - 5 °C / Inert atmosphere
7.2: 2 h / 20 - 25 °C / Inert atmosphere
8.1: sodium dihydrogenphosphate; 2-methyl-but-2-ene; sodium chlorite / water; tert-butyl alcohol / 5 h / 20 - 25 °C
9.1: potassium carbonate / hexane; toluene; methanol / 16 h / 20 - 25 °C / Inert atmosphere
References:
Ashida, Yuichiro;Kawamoto, Momoyo;Matsuo, Noritada;Moriyama, Mizuki;Tanabe, Yoo [Journal of Organic Chemistry,2020,vol. 85,# 5,p. 2984 - 2999]
![1R-trans-methyl caronaldehydate](/CAS/GIF/27335-33-7.gif)
27335-33-7
3 suppliers
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![PYRETHRIN 2](/CAS/20180906/GIF/121-29-9.gif)
121-29-9
81 suppliers
$120.00/1g
![2-Cyclopenten-1-one, 4-hydroxy-3-methyl-2-(2,4-pentadienyl)-, (Z)-(+)-](/CAS/GIF/487-67-2.gif)
487-67-2
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![PYRETHRIN 2](/CAS/20180906/GIF/121-29-9.gif)
121-29-9
81 suppliers
$120.00/1g
![TRANS-(+)-CHRYSANTHEMIC ACID](/CAS/GIF/4638-92-0.gif)
4638-92-0
59 suppliers
$264.87/500MG
![PYRETHRIN 2](/CAS/20180906/GIF/121-29-9.gif)
121-29-9
81 suppliers
$120.00/1g
![(4S)-4-hydroxy-3-methyl-2-prop-2-ynyl-cyclopent-2-en-1-one](/CAS/GIF/77087-34-4.gif)
77087-34-4
2 suppliers
inquiry
![PYRETHRIN 2](/CAS/20180906/GIF/121-29-9.gif)
121-29-9
81 suppliers
$120.00/1g