| Name | 1R-trans-methyl caronaldehydate |
| Synonyms | 1R-trans-methyl caronaldehydate Cyclopropanecarboxylic acid, 3-formyl-2,2-dimethyl-, methyl ester, (1R,3R)- |
| CAS | 27335-33-7 |
| Molecular Formula | C8H12O3 |
| Molar Mass | 156.18 |
| Density | 1.149±0.06 g/cm3(Predicted) |
| Boling Point | 186.8±33.0 °C(Predicted) |
| Physical and Chemical Properties | The chemical product is an oily liquid, B. p.82 ~ 84 ℃/1.86kpa, insoluble in water, soluble in ethanol, methanol, toluene and other solutions. |
| Use | Uses D-trans-uronic acid methyl ester is a raw material for the preparation of 1R-cis-uronic acid lactone, and deltamethrin can be further prepared. |
using (±) trans-chrysanthemum acid as raw material, first using L-() thel-type p-nitrophenyl-2-N,N-dimethylamino -1,3-propanediol as the splitting agent to obtain dextrotrans-chrysanthemum acid, and further esterification with methanol to obtain 1R-trans-chrysanthemum acid methyl ester.
Ozone was introduced into 1R-trans-chrysanthemum acid methyl ester solution, the reaction temperature was kept at -10~12 ℃, the reaction end point was tested with KI starch test paper, and then a reducing agent was added to decompose the peroxide to obtain acetal ester, and then the mixed solvent of water and glacial acetic acid was heated and hydrolyzed to obtain methyl dextrotrans-caronate.