Palladium/monophosphine complexes catalyze trans-selective arylative, alkenylative, and alkylativecyclization reactions of alkynals and alkynones with organoboronic reagents. These reactions afford six-membered allylic alcohols with endo-tri- or tetrasubstituted olefin groups and/or five-membered counterparts with exo olefin groups. The ratios of these products are dramatically affected by alkyne
Synthesis of Quinolinium Salts from <i>N</i>
-Substituted Anilines, Aldehydes, Alkynes, and Acids: Theoretical Understanding of the Mechanism and Regioselectivity
A3 reaction with secondary aniline: Secondary anilines were first utilized in coupling with aldehydes and alkynes to synthesize corresponding N‐substituted quinolinium salts. DFT calculation was performed to understand the [4+2] cycloaddition mechanism and the singular regioselectivity of the reaction.