The Facile Route to Stereodefined Alkenyl‐Substituted Pyrimidines
摘要:
The Suzuki-Miyaura type cross-coupling reactions of various chloropyrimidines with stereodefined alkenylboronic acids giving the corresponding alkenyl-substituted pyrimidines were studied. The experiments discovered that the reaction is stereospecific and highly regioselective. In the coupling of 2,4-dichloropyrimidine and 2,4,6-trichloropyrimidine, the reaction occured at 4-position prior to 2-position.