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Tetrasubstituted Olefinic Xanthene Dyes: Synthesis via Pd-Catalyzed 6-exo-dig Cyclization/C–H Activation of 2‑Bromobenzyl‑N‑propargylamines and Solid State Fluorescence Properties

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journal contribution
posted on 2013-01-18, 00:00 authored by Avanashiappan Nandakumar, Paramasivan Thirumalai Perumal
Tetrasubstituted olefin based new xanthene derivatives have been synthesized via palladium-catalyzed carbopalladation/C–H activation of 2-bromobenzyl-N-propargylamine derivatives. The synthesized compounds display a pronounced solid state fluorescence due to their restricted internal rotation of a C–Ar bond in the solid or aggregation state.

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