http://hdl.handle.net/20.500.12416/2168 Kimya Bilim Dalı makalelerini içerir. Wed, 28 Oct 2026 16:43:20 GMT 2026-10-28T16:43:20Z http://hdl.handle.net/20.500.12416/3385 Ring annulation versus alkylation of pyrrole with alpha-phosphoryl-alpha,beta-unsaturated ketones Taşgın, Dilek Işık; Unaleroğlu, Canan In this study; novel aryl, heteroaryl, pyrrolyl and phosphoryl groups containing pyrrolizines were synthesized by the ring annulation reaction of aryl or heteroaryl substituted alpha-phosphoryl-alpha,beta-unsaturated ketones with pyrrole under mild reaction conditions. This domino reaction involves scandium triflate catalyzed addition of pyrrole to the double bond of alpha-phosphoryl-alpha,beta-unsaturated ketones, carbonyl group and finally ring annulation sequences. The presented work provided a convenient way for the synthesis of novel bispyrrolic compounds. (C) 2016 Elsevier Ltd. All rights reserved. Thu, 29 Sep 2016 00:00:00 GMT http://hdl.handle.net/20.500.12416/3385 2016-09-29T00:00:00Z http://hdl.handle.net/20.500.12416/1828 N-phosphorylation of pyrroles: An intramolecular migration reaction Taşgın, Dilek; Unaleroğlu, Canan A new synthetic method is reported for the N-phosphorylation of pyrroles via intramolecular migration of a phosphonate diester group. The reaction proceeds under mild conditions and produces N-phosphorylated pyrrole derivatives in moderate to good yields. Wed, 16 May 2018 00:00:00 GMT http://hdl.handle.net/20.500.12416/1828 2018-05-16T00:00:00Z