cis-Cypermethric acid
CIS-Cypermethric Acid
CAS: 59042-49-8
Molecular Formula: C8H10Cl2O2
cis-Cypermethric acid - Names and Identifiers
cis-Cypermethric acid - Physico-chemical Properties
| Molecular Formula | C8H10Cl2O2 |
| Molar Mass | 209.07 |
| Density | 1.433 |
| Melting Point | 95-96℃ |
| Boling Point | 291℃ |
| Flash Point | 130℃ |
| Storage Condition | -20°C |
| Physical and Chemical Properties | Chemical quality This product is a white solid, m.p.88 ~ 89 ℃, insoluble in water, soluble in benzene, toluene, carbon tetrachloride, chloroform and other solvents. |
| Use | Use (±) cis-dichloropolyamic acid is an intermediate for the preparation of cis-permethrin, cis-cypermethrin and deltamethrin. |
cis-Cypermethric acid - Upstream Downstream Industry
cis-Cypermethric acid - Nature
| acidity coefficient (pKa) | 4.66±0.42(Predicted) |
| EPA chemical information | Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, (1R,3R)-rel- (59042-49-8) |
Last Update：2024-04-10 22:29:15
cis-Cypermethric acid - Production method
±) cis-dichlorochrysanthemum acid can be added with (±) cis-trans dichlorochrysanthemum acid to sodium hydroxide solution to adjust the pH value to a certain value, and then carbon dioxide is passed into the solution,(±) cis-dichlorochrysanthemum acid is precipitated, filtered and dried to obtain (±) cis-dichlorochrysanthemum acid, and (±) trans-dichlorochrysanthemum.
In addition, ethyl 3, 3-dimethyl-4, 6,6, 6-tetrachlorohexanoate can also be generated by the modulating reaction of methyl elpate and carbon tetrachloride, and then potassium tert-butoxide can be combined to form (±) dichlorochrysanthemum acid methyl ester with an inverse ratio of 9: 1. Further saponification and recrystallization can obtain (±) cis dichlorochrysanthemum acid. The process is as follows: ethyl 3, 3-dimethyl-4-pentenoic acid, carbon tetrachloride and benzoyl peroxide are added to the round bottom flask, refluxed under nitrogen protection for 24 hours, and then carbon tetrachloride is distilled, the reaction residue is washed with dilute NaHCO3 solution to weakly alkaline, then washed with saturated salt water to neutral, dried, concentrated and distilled under reduced pressure to obtain ethyl 3, the yield can reach 90%, and the boiling point is 115~116 ℃/27Pa. In addition, add anhydrous tert-butanol into the round bottom flask, add metal potassium under the protection of nitrogen, heat and reflux until the metal potassium is completely dissolved, cool to room temperature, add the mixed solvent of cyclohexane and dimethylacetamide, stir evenly, cool to -20 ℃, and then drop a mixture of 3, 3-dimethyl-4, 6, 6-tetrachlorohexanoate and tert-butanol in, after the addition, react at -20~-15 ℃ for 5h, then raise the temperature to room temperature for 1h, add saturated ammonium chloride solution, separate out the organic phase, wash with saturated salt water to neutral, dry and concentrate, and distill under reduced pressure to obtain cis-rich dichloromethurate, cis, inverse ratio is 9: 1, boiling range is 91~93 ℃/20Pa. Then the above-mentioned cis-dichlorochrysanthemum acid is added to the aqueous solution of potassium hydroxide ethanol, heated and refluxed for 5h, saponified, and most of the ethanol and water are evaporated under reduced pressure. Under ice bath cooling, it is acidified with 30% HCl to precipitate a light yellow solid, filtered, dried, and recrystallized with n-hexane to obtain white solid (±) cis-chrysanthemum.
Last Update：2024-04-10 22:29:15
Supplier List
Featured ProductsSpot supply
Product Name: (±)-cis-Permethrinic Acid Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Permethrin Impurity Request for quotationCAS: 59042-49-8
Tel: 0712-8899838
Email: jy6101@rmastandards.com
Mobile: 86-15787876101
QQ: 2518299249
Wechat: 15787876101
Product Name: cis-DL-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid Request for quotation
CAS: 59042-49-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
CAS: 59042-49-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Spot supply
Product Name: (±)-cis-PermethrinicAcid Request for quotationCAS: 59042-49-8
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Product Name: CIS-Cypermethric Acid Request for quotation
CAS: 59042-49-8
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
CAS: 59042-49-8
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
Spot supply
Product Name: CIS-DL-3-(2,2-DICHLOROVINYL)-2,2-DIMETHYLCYCLOPROPANECARBOXYLIC ACID Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: cis-cypermethric acid Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Product Name: rac-cis-Permethrinic Acid Visit Supplier Webpage Request for quotation
CAS: 59042-49-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
CAS: 59042-49-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Featured ProductsSpot supply
Product Name: (±)-cis-Permethrinic Acid Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Permethrin Impurity Request for quotationCAS: 59042-49-8
Tel: 0712-8899838
Email: jy6101@rmastandards.com
Mobile: 86-15787876101
QQ: 2518299249
Wechat: 15787876101
Product Name: cis-DL-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid Request for quotation
CAS: 59042-49-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
CAS: 59042-49-8
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Spot supply
Product Name: (±)-cis-PermethrinicAcid Request for quotationCAS: 59042-49-8
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Product Name: CIS-Cypermethric Acid Request for quotation
CAS: 59042-49-8
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
CAS: 59042-49-8
Tel: +86 18942506900
Email: lilyqu@chemoway.com
Mobile: +86 18942506900
QQ: 3182628472
Wechat: +86 18942506900
WhatsApp: +86 18942506900
Linkedin: +86 18942506900
Spot supply
Product Name: CIS-DL-3-(2,2-DICHLOROVINYL)-2,2-DIMETHYLCYCLOPROPANECARBOXYLIC ACID Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: cis-cypermethric acid Visit Supplier Webpage Request for quotationCAS: 59042-49-8
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Product Name: rac-cis-Permethrinic Acid Visit Supplier Webpage Request for quotation
CAS: 59042-49-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
CAS: 59042-49-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
View History
Raw Materials for cis-Cypermethric acid
Downstream Products for cis-Cypermethric acid