Tetrahydrofuran → 2-Chloro-5-(2,6-difluoro-4-pentylphenyl)pyrimidine

Participants

Reaction Steps

A mixture of 0.22 mol of 4-pentyl-2,6-difluorophenylboronic acid (prepared from 5-pentyl-1,3-difluorobenzene and trimethyl borate using n-butyllithium), 0.18 mol of 5-bromo-2-chloropyrimidine, 550 ml of THF, 75 ml of an aqueous buffer solution (pH=8), 230 ml of an aqueous disodium tetraborate decahydrate solution (4%), 200 ml of water and 2 g of tetrakis[triphenylphosphine]palladium (0) is heated at the boil for 20 hours. Customary work-up gives the product, which can be further processed without purification.

Provenance & Evidence