Cascade C-H Activation/Annulation of Sulfoxonium Ylides with Vinyl Cyclopropanes: Access to Cyclopropane-Fused α-Tetralones.
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DOI: 10.1021/acs.orglett.3c00650
Abstract: Rh-catalyzed weak and traceless directing-group-assisted cascade C-H activation and annulation of sulfoxonium ylides with vinyl cyclopropanes as a coupling partner have been accomplished to furnish functionalized cyclopropane-fused tetralones at moderate temperature. The C-C bond formation,… read more here.
Keywords: annulation sulfoxonium; vinyl cyclopropanes; cascade activation; ylides vinyl ... See more keywords
Multifunctional Fluorescent Main-Chain Charged Polyelectrolytes Synthesized by Cascade C-H Activation/Annulation Polymerizations.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c12654
Abstract: Fluorescent polyelectrolytes have attracted enormous attention as functional polymer materials. In contrast with the widely studied conjugated polyelectrolytes with ionic groups in side chains, fluorescent main-chain charged polyelectrolytes (MCCPs) have rarely been explored due to… read more here.
Keywords: main chain; charged polyelectrolytes; cascade activation; fluorescent ... See more keywords
Expeditious synthesis of pyrano[2,3,4-de]quinolines via Rh(iii)-catalyzed cascade C-H activation/annulation/lactonization of quinolin-4-ol with alkynes.
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DOI: 10.1039/c7cc04113f
Abstract: Rh(iii)-catalyzed cascade C-H activation/annulation/lactonization of quinoline-4-ols and alkynes has been reported. A broad range of tetracyclic pyrano[2,3,4-de]quinolines have been prepared in one-step with good functional group tolerance, excellent site selectivity, and high efficiency. read more here.
Keywords: annulation lactonization; iii catalyzed; cascade activation; pyrano quinolines ... See more keywords