19312-06-2Relevant articles and documents
Arylation of Heterocycles via Rhodium-Catalyzed C-H Bond Functionalization
Lewis, Jared C.,Wiedemann, Sean H.,Bergman, Robert G.,Ellman, Jonathan A.
, p. 35 - 38 (2004)
(Equation presented) A new method for the rhodium-catalyzed arylation of a variety of heterocycles has been developed. The reaction provided moderate to good yields of the arylated products. A preliminary mechanistic investigation of this reaction revealed the intermediacy of an isolable N-heterocyclic carbene complex.
Substitution Effect on 2-(Oxazolinyl)-phenols and 1,2,5-Chalcogenadiazole -Annulated Derivatives: Emission-Color-Tunable, Minimalistic Excited-State Intramolecular Proton Transfer (ESIPT)-Based Luminophores
G?bel, Dominik,Rusch, Pascal,Duvinage, Daniel,Stauch, Tim,Bigall, Nadja-C.,Nachtsheim, Boris J.
supporting information, p. 14333 - 14355 (2021/10/20)
Minimalistic 2-(oxazolinyl)-phenols substituted with different electron-donating and -withdrawing groups as well as 1,2,5-chalcogenadiazole-annulated derivatives thereof were synthesized and investigated in regard to their emission behavior in solution as well as in the solid state. Depending on the nature of the incorporated substituent and its position, emission efficiencies were increased or diminished, resulting in AIE or ACQ characteristics. Single-crystal analysis revealed J- and H-type packing motifs and a so-far undescribed isolation of ESIPT-based fluorophores in the keto form.
Nickel-catalyzed reductive defunctionalization of esters in the absence of an external reductant: Activation of C-O bonds
Iyori, Yasuaki,Takahashi, Kenjiro,Yamazaki, Ken,Ano, Yusuke,Chatani, Naoto
supporting information, p. 13610 - 13613 (2019/11/14)
The nickel-catalyzed reductive cleavage of esters in the absence of an external reductant, which involves the cleavage of an inert acyl C-O bond in O-Alkyl esters is reported. Various groups, such as N-containing heterocycles, esters, amides, and even arene rings can function as a directing group.