Catalyst-Controlled Nickel-Catalyzed Intramolecular endo-Selective C-H Cyclization of Benzimidazoles with Alkenes.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.2c04012
Abstract: Compared with the widely explored exo-selective C-H cyclization, transition metal-catalyzed endo-selective C-H cyclization of benzimidazoles with alkenes has been a formidable challenge. Previous efforts mainly rely on substrate-controlled methods, rendering the product complexity restricted. Herein… read more here.
Keywords: endo selective; selective cyclization; cyclization benzimidazoles; cyclization ... See more keywords
A Rational Entry to Cyclic Polymers via Selective Cyclization by Self-Assembly and Topology Transformation of Linear Polymers.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.7b01151
Abstract: A simple and effective synthetic route to cyclic polymers has been developed based on the following sequence: (i) selective cyclization of two self-complementary sec-ammonium-containing crown ether monomers to afford [c2] daisy-chain bifunctional initiators, (ii) living… read more here.
Keywords: selective cyclization; cyclic polymers; linear polymers; topology ... See more keywords