| Identification | Back Directory | [Name]
chlorempenthrin | [CAS]
54407-47-5 | [Synonyms]
8501c
chlorempenthrin
1-ethynyl-2-methylpenten-2-yl-(1R,S)-cis,trns-2,2-dimethyl-3-(2,2-dichlorovinyl) cyclpropanecarboxylate
1-Ethynyl-2-methyl-2-penten-1-yl (1R,S)-cis,trans-2,2-dimethyl-3-(2,2-dichlorovinyl) cyclopropanecarboxylate | [Molecular Formula]
C17H22Cl2O2 | [MDL Number]
MFCD14156110 | [MOL File]
54407-47-5.mol | [Molecular Weight]
329.265 |
| Chemical Properties | Back Directory | [Boiling point ]
385.3±42.0 °C(Predicted) | [density ]
1.192±0.06 g/cm3(Predicted) | [InChI]
InChI=1S/C16H20Cl2O2/c1-6-8-10(3)12(7-2)20-15(19)14-11(9-13(17)18)16(14,4)5/h2,8-9,11-12,14H,6H2,1,3-5H3 | [InChIKey]
XCUGQTFVQHTFPD-UHFFFAOYSA-N | [SMILES]
C1(C(OC(C#C)C(C)=CCC)=O)C(/C=C(/Cl)\Cl)C1(C)C |
| Hazard Information | Back Directory | [Chemical Properties]
Chlorempenthrin is a light yellow liquid or a light yellow to white solid with a
reduced pressure boiling point of 128–130°C at 40 Pa. Its density is 1.12 g.cm–3 at
20°C. The refractive index of chlorempenthrin is 1.5037 at 25°C. It is easily soluble in
organic solvents such as acetone, ethanol and benzene but insoluble in water. | [Uses]
Chlorempenthrin is used in the sanitary insecticidal compositions. It is also used in self heating Mosquito repellent. | [Preparation]
2-Methyl-1-ethynyl-2-pentenol, pyridine and toluene were added to the reaction vessel,
and 3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride were added in a
dropwise manner under agitation. The reaction was carried out at a suitable temperature for 6 h. After reaction, the reaction solution was washed with water until neutral,
dried and then subjected to distillation under reduced pressure. Chlorempenthrin was collected from a fraction of 130–132°C (1mmHg). The yield of chlorempenthrin
was 86%. | [General Description]
Chlorempenthrin, also known as 1-ethynyl-2-methylpent-2-enyl (RS)-2,2-dimethyl-
3-(2,2-dichlorovinyl) cyclopropanecarboxylate and 3-(2,2-dichlorovinyl)-2,2-
dimethylcyclopropanecarboxylic acid-1-ethynyl-2-methylpenten-2-ol ester, is a
derivative of 1-ethynyl-2-methyl penten-2-ol. Molecular formula: C17H22O2Cl2, molecular weight: 329.265. |
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