title: Transition-Metal-Free Synthesis of Homo- and Hetero-1,2,4-Triaryl Benzenes by an Unexpected Base-Promoted Dearylative Pathway.
abstract: An unprecedented approach for the synthesis of homo- and hetero-1,2,4-triaryl benzenes has been developed using a simple base-mediated reaction of either α-aryl cinnamyl alcohols or α,γ-di-aryl propanones. The salient feature of this strategy involves the sequential hydride transfer, regiospecific condensation, regiospecific dearylation, and aromatization under metal-free reaction conditions. The synthesis of unsymmetrically substituted triphenylenes by oxidative coupling of the synthesized 1,2,4-triaryl benzenes has also been demonstrated.
authors.affiliation: Department of Chemistry, Indian Institution of Science education and Research Bhopal, Bhopal By-pass Road, Bhouri, Bhopal, 462066, India.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Rehan
authors.affiliation: Department of Chemistry, Indian Institution of Science education and Research Bhopal, Bhopal By-pass Road, Bhouri, Bhopal, 462066, India.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Maity
authors.affiliation: Department of Chemistry, Indian Institution of Science education and Research Bhopal, Bhopal By-pass Road, Bhouri, Bhopal, 462066, India.
authors.forename: Lalit Kumar
authors.initials: LK
authors.lastname: Morya
authors.affiliation: Department of Chemistry, Indian Institution of Science education and Research Bhopal, Bhopal By-pass Road, Bhouri, Bhopal, 462066, India.
authors.forename: Kaushik
authors.initials: K
authors.lastname: Pal
authors.affiliation: Department of Chemistry, Indian Institution of Science education and Research Bhopal, Bhopal By-pass Road, Bhouri, Bhopal, 462066, India. pghorai@iiserb.ac.in.
authors.forename: Prasanta
authors.initials: P
authors.lastname: Ghorai
keywords: arenes; cyclizations; materials science; regioselectivity; synthetic methods