2017
DOI: 10.1039/c7cc03903d
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Transition metal-free, visible-light mediated synthesis of 1,10-phenanthroline derived ligand systems

Abstract: A broad range of 1,10-phenanthroline substrates was efficiently C-H functionalised, providing rapid, gram-scale access to substituted heteroaromatic cores of broad utility. Furthermore, this C-H functionalisation pathway was extended to the synthesis of previously inaccessible, ultra-soluble, 2,9-bis-triazinyl-1,10-phenanthroline (BTPhen) ligands for advanced nuclear fuel cycles.

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Cited by 18 publications
(40 citation statements)
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“…The synthetic value of these reactions was further demonstrated with the efficient formation of imidazopyridazine derivative 5 r (related derivatives have undergone clinical trials against myeloproliferative diseases) . Prominent ligand architectures were also efficiently alkylated with this method, such as in phenanthridine and phenanthroline derivatives 5 s and 5 t …”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The synthetic value of these reactions was further demonstrated with the efficient formation of imidazopyridazine derivative 5 r (related derivatives have undergone clinical trials against myeloproliferative diseases) . Prominent ligand architectures were also efficiently alkylated with this method, such as in phenanthridine and phenanthroline derivatives 5 s and 5 t …”
Section: Methodsmentioning
confidence: 99%
“…[19] Prominent ligand architectures were also efficiently alkylated with this method, such as in phenanthridine and phenanthroline derivatives 5s and 5t. [20] Having demonstrated the effectiveness of this approach for the generation of relatively simple cyclic and acyclic alkyl radicals,w es ought to challenge this process for the generation of more complex alkyl radical species using one of the best-known naturally abundant feedstocks-amino acids. Amino acids have previously been used as radical precursors in photoredox-catalyzed decarboxylative processes (Scheme 4, VI!VII), [21] and as such, adeaminative protocol (VI!VIII)would offer apowerful complementary approach for the chemoselective generation of alkyl radicals from the same precursors.…”
mentioning
confidence: 99%
“…In particular, bis-triazinyl-phenanthroline ligands such as 3 [8] and its derivatives have been extensively investigated. [9] Recent research has focusedm ostly on the effects that substituents attached to the aromatic rings of 2 [10] and 3 [11] have on their extraction properties. However,t here has been less emphasis on modifying the aliphatic rings appended to the triazine rings of ligands 1-3.…”
Section: Introductionmentioning
confidence: 99%
“…2) effektiv zu bilden. [20] Nachdem wir die Effektivitätd ieses Ansatzes fürd ie Erzeugung von relativ einfachen cyclischen und acyclischen Alkylradikalen gezeigt hatten, beabsichtigten wir, diesen Prozess fürd ie Erzeugung von komplexeren Alkylradikalspezies mit einem der bekanntesten natürlichen Ausgangsmaterialien, den Aminosäuren, zu nutzen. So wurde eine breitere Vielfalt von Katritzky-Salzen zur Untersuchung analog zu Schema 2h ergestellt.…”
unclassified
“…[19] Mit diesem Verfahren wurden auch wichtige Ligandenarchitekturen effizient alkyliert, wie fürd ie Phenanthridin-und Phenanthrolin-Derivate 5s und 5t gezeigt. [20] Nachdem wir die Effektivitätd ieses Ansatzes fürd ie Erzeugung von relativ einfachen cyclischen und acyclischen Alkylradikalen gezeigt hatten, beabsichtigten wir, diesen Prozess fürd ie Erzeugung von komplexeren Alkylradikalspezies mit einem der bekanntesten natürlichen Ausgangsmaterialien, den Aminosäuren, zu nutzen. Aminosäuren wurden bereits als Radikalvorstufen in photoredoxkatalysierten Decarboxylierungsverfahren eingesetzt (Schema 4, VI!VII), [21] und daher würde ein deaminierendes Protokoll (VI!VIII)einen wertvollen komplementären Ansatz fürdie Nr.…”
unclassified