Abstract: Bronsted acid Tf2NH alone catalyzed Friedel-Crafts-type hydroarylation and head-to-tail hydroalkenylation of vinylarenes under mild reaction conditions have been realized, providing a readily scalable, metal-free, and practical access to the 1,1-diarylalkane scaffolds and trans-1,3-diaryl-1-butenes in high yields and excellent regioselectivities. 
KeyWords Plus:C-H BOND; HIGHLY SELECTIVE DIMERIZATION; TO-HEAD DIMERIZATION; ALPHA-OLEFINS; RUTHENIUM COMPLEX; ORTHO-ALKYLATION; INTERMOLECULAR HYDROARYLATION; AROMATIC KETIMINES; TAIL DIMERIZATION; ROOM-TEMPERATURE
Published in RSC ADVANCES, 6 (80):10.1039/c6ra16627j 2016