Visible-Light-Promoted Intramolecular α-Allylation of Aldehydes in the Absence of Sacrificial Hydrogen Acceptors.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c02742
Abstract: We report herein an unprecedented protocol for radical cyclization of aldehydes with pendant alkenes via synergistic photoredox, cobaloxime, and amine catalysis. The transformation was achieved in the absence of external oxidants, providing a variety of… read more here.
Keywords: promoted intramolecular; aldehydes absence; intramolecular allylation; visible light ... See more keywords
Planar Tetraindolodipleiadiene via Zirconium-Promoted Intramolecular Indolyl C4-H Homocoupling.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01484
Abstract: A novel N-rimmed PAH molecule containing a dipleiadiene core (TIDP) was designed and synthesized from indole, wherein a ZrCl4-promoted intramolecular C4-H homocoupling reaction of the indole moieties was the key approach. TIDP exhibited a nearly… read more here.
Keywords: via zirconium; zirconium promoted; intramolecular indolyl; promoted intramolecular ... See more keywords
Visible-light-promoted intramolecular C–H amination in aqueous solution: synthesis of carbazoles
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DOI: 10.1039/c7gc03392c
Abstract: An effective and operationally simple protocol is reported for the synthesis of versatile carbazoles. With water as a co-solvent, visible-light rather than various metals is used to facilitate the conversion of readily available 2-azidobiphenyls under… read more here.
Keywords: promoted intramolecular; amination aqueous; intramolecular amination; visible light ... See more keywords
Visible-light promoted intramolecular carboamination of alkynes for the synthesis of oxazolidinone-fused isoquinolinones.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc06542h
Abstract: An efficient method for the synthesis of isoquinolinone derivatives via photopromoted carboamination of alkynes is developed. Starting from the readily available propargyl alcohol derivatives, the polycyclic isoquinolinone derivatives could be obtained with good aryl and… read more here.
Keywords: light promoted; intramolecular carboamination; promoted intramolecular; visible light ... See more keywords
Copper-Promoted Intramolecular Aminotrifluoromethylation of Alkenes with Langlois Reagent as the Trifluoromethyl Source
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DOI: 10.1055/s-0036-1588400
Abstract: A novel approach for copper-promoted intramolecular aminotrifluoromethylation of alkenes using inexpensive CF3SO2Na as the trifluoromethyl source is described. The feature of this method is the concurrent construction of a five-membered ring and a C–CF3 bond… read more here.
Keywords: promoted intramolecular; copper promoted; intramolecular aminotrifluoromethylation; aminotrifluoromethylation alkenes ... See more keywords
Base-Promoted Intramolecular Addition of Vinyl Cyclopropanecarboxamides to Access Conformationally Restricted Aza[3.1.0]bicycles
Sign Up to like & getrecommendations! Published in 2023 at "Molecules"
DOI: 10.3390/molecules28093691
Abstract: 3-Azabicyclo[3.1.0]hexanes are common structural components in natural products and bioactive compounds. Traditionally, the metal-mediated cyclopropanation domino reaction of chain enzymes is the most commonly used strategy for the construction of this type of aza[3.1.0]bicycle derivative.… read more here.
Keywords: base promoted; aza bicycles; conformationally restricted; promoted intramolecular ... See more keywords