p-Toluenesulfonic acid → (RS)1-(6-phenoxy-2-pyridyl)-ethyl(1R,cis,Z)2,2-dimethyl-3-[3-oxo-3-hydroxy-1-propenyl]-cyclopropane-carboxylate

Participants

Reaction Conditions

Reaction Steps

A mixture of 5.649 g of the product of Step A, 0.5 g of p-toluene sulfonic acid and 70 ml of toluene was refluxed until gas evolution ceased and the mixture was cooled to 0° C. and filtered. The filtrate was evaporated to dryness under reduced pressure to obtain 4.741 g of (RS)1-(6-phenoxy-2-pyridyl)-ethyl(1R,cis,Z)2,2-dimethyl-3-[3-oxo-3-hydroxy-1-propenyl]-cyclopropane-carboxylate.

Provenance & Evidence