Pyridine → 3,4-dimethyl-3-cyclopenten-1-yl (1RS)-cis-3-(Z-2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Participants

Reaction Steps

To a mixture of 3,4-dimethyl-3-cyclopenten-1-ol (175 mg), 2,6-di-tert-butyl-4-methylphenol (5 mg), pyridine (150 mg) and toluene (10 ml), (1RS)-cis-3-(Z-2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarbonyl chloride (395 mg) was added under ice-cooling. The resulting reaction mixture was further allowed to react for 8 hours at room temperature. Then the reaction mixture was subjected to the same post-treatment as in Example 1 to afford 441 mg of 3,4-dimethyl-3-cyclopenten-1-yl (1RS)-cis-3-(Z-2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate (Compound No. 3). Yield 84% nD25 1.4620

Provenance & Evidence