ChemicalBook--->CAS DataBase List--->4638-92-0

4638-92-0

4638-92-0 Structure

4638-92-0 Structure
IdentificationBack Directory
[Name]

TRANS-(+)-CHRYSANTHEMIC ACID
[CAS]

4638-92-0
[Synonyms]

d-trans-Form
ChrysantheMic Acid Chloride
(+)-trans-Chrysanthemic acid
(1r-trans)-chrysanthemicacid
trans-(+)-Chrysanthemic acid, 99+%
(+)-(1r,3r)-2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylicacid
2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicaci(1r-trans
(1S,3S)-2,2-DiMethyl-3-(2-Methylprop-1-enyl)cyclopropanecarboxylic acid
(E,1R)-2,2-dimethyl-3(2-methylprop-1-enyl)-cyclopropane-1-carbonic acid
2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicaci(1theta-tr
2,2-dimethyl-3-(2-methylpropenyl)-,(1r,3r)-(+)-cyclopropanecarboxylicaci
(1R)-2,2-Dimethyl-3α-(2-methyl-1-propenyl)cyclopropane-1β-carboxylic acid
(1R)-2β-(2-Methyl-1-propenyl)-3,3-dimethylcyclopropane-1α-carboxylic acid
(1R-trans)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid
(1R,3R)-2,2-DIMETHYL-3-(2-METHYL-1-PROPEN-1-YL)CYCLOPROPANECARBOXYLIC ACID
[1R,3R,(+)]-2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid
[1R,3R,(+)]-2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropane-1-carboxylic acid
(1R,3R)-TRANS-2,2-DIMETHYL-3-(2-METHYL-1-PROPENYL)CYCLOPROPANE-1-CARBOXYLIC ACID
[EINECS(EC#)]

225-067-5
[Molecular Formula]

C10H16O2
[MDL Number]

MFCD01941572
[MOL File]

4638-92-0.mol
[Molecular Weight]

168.23
Chemical PropertiesBack Directory
[Appearance]

clear colorless to yellow liquid
[Melting point ]

17-21 °C
[alpha ]

D25 +14.16° (c = 1.554 in abs alc)
[Boiling point ]

255.81°C (rough estimate)
[density ]

0.9934 (rough estimate)
[refractive index ]

n20/D 1.477
[storage temp. ]

0-6°C
[form ]

Liquid
[pka]

4.90±0.33(Predicted)
[color ]

Clear colorless to yellow
[optical activity]

[α]/D +14±1°, c = 2% in ethanol
[BRN ]

4904351
[CAS DataBase Reference]

4638-92-0
[EPA Substance Registry System]

Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R,3R)- (4638-92-0)
Hazard InformationBack Directory
[Chemical Properties]

clear colorless to yellow liquid
[Uses]

(+)-trans-Chrysanthemic acid may be used in the preparation of (+)-trans-pyrethric acid, a building block for rethrin II.
[Uses]

(+)-trans-Chrysanthemic Acid is a reactant in the synthesis of (1R,3R)-[2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl]methyl (R)-2-acetoxy-3-methylbutanoate, the sex pheromone of Pseudococcus calceolariae, the citrophilous mealybug
[Definition]

ChEBI: (+)-trans-chrysanthemic acid is a trans-chrysanthemic acid in which both stereocentres have R configuration. It is functionally related to a (R,R)-chrysanthemal. It is a conjugate acid of a (R,R)-chrysanthemate. It is an enantiomer of a (-)-trans-chrysanthemic acid.
[General Description]

(+)-trans-Chrysanthemic acid is the acidic component of synthetic pyrethroid insecticides. It can be prepared from (+)-Δ3-carene.
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

36/38
[Safety Statements ]

26
[WGK Germany ]

3
[RTECS ]

GZ1280000
[F ]

10-23
[HS Code ]

29162090
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

Allethrin-->trans-(±)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid-->1R,3R-chrysanthemic acid-->1R-cis crysanthemic acid-->cis-(±)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid-->PYRETHRIN 2-->3-(but-2-enyl)-2-methyl-4-oxocyclopent-2-enyl2,2-dimethyl-3-(3-methoxy-2-methyl-3-oxoprop-1-enyl)cyclopropanecarboxylate
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