“…The similarity with N-amidoimidates derivatives reported previously [12] allows the attribution of the oxidation peak of these substrates to an electron transfer on N-H bond. This observation is in agreement with results cited in the literature [13]. The slight difference of the peak potential of compounds 1a-1b can be explained by the nature of R 2 group.…”
Section: Heterogeneous Oxidation Of N-thioamidoimidatessupporting
“…The similarity with N-amidoimidates derivatives reported previously [12] allows the attribution of the oxidation peak of these substrates to an electron transfer on N-H bond. This observation is in agreement with results cited in the literature [13]. The slight difference of the peak potential of compounds 1a-1b can be explained by the nature of R 2 group.…”
Section: Heterogeneous Oxidation Of N-thioamidoimidatessupporting
Several (multiply) iodinated squarylium cyanine dyes of type 1 and 8 (see Scheme and Table), derived from 1,3‐benzothiazole and 6‐iodo‐1,3‐benzothiazole, were synthesized as potential new photosensitizers, with absorptions in the 700‐nm region. Their ability to generate singlet oxygen (1O2) was assessed by luminescence‐decay measurement in the near‐IR. Some of these new dyes show interesting photophysical properties, and may be potentially used in photodynamic therapy (PDT).
“…As mentioned before, performing oxidative reactions in an electrochemical cell can avoid both the necessity of using highly oxidising conditions and the use of transition metals. Although the first report on electrochemical oxidation for the synthesis of benzothiazoles was published in 1979 [264], due to renewed interest in the field of electrochemistry more methodologies are being reported in literature, including improvements in the electrosynthesis of benzothiazoles via dehydrogenative C-S coupling [265,266]. The group of Wirth reported the synthesis of thiazoles using flow electrochemistry.…”
Section: Scheme 77 Flow Oxygenative Electrolysis Of Approved Drugs C mentioning
C-H functionalization chemistry is one of the most vibrant research areas within synthetic organic chemistry. While most researchers focus on the development of small-scale batch-type transformations, more recently such transformations have been carried out in flow reactors to explore new chemical space, to boost reactivity or to enable scalability of this important reaction class. Herein, an up-to-date overview of C-H bond functionalization reactions carried out in continuous-flow microreactors is presented. A comprehensive overview of reactions which establish the formal conversion of a C-H bond into carbon-carbon or carbonheteroatom bonds is provided; this includes metal-assisted C-H bond cleavages, hydrogen atom transfer reactions and C-H bond functionalizations which involve an S E-type process to aromatic or olefinic systems. Particular focus is devoted to showcase the advantages of flow processing to enhance C-H bond functionalization chemistry. Consequently, it is our hope that this review will serve as a guide to inspire researchers to push the boundaries of C-H functionalization chemistry using flow technology.
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