Continuous-Flow Synthesis of Pyrylium Tetrafluoroborates: Application to Synthesis of Katritzky Salts and Photoinduced Cationic RAFT Polymerization
Katritzky salts have emerged as effective alkyl radical sources upon metal- or photocatalysis. These are typically prepared from the corresponding triarylpyrylium ions, in turn an important class of photocatalysts for small molecules synthesis and photopolymerization. Here, a flow method for the rap...
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| Veröffentlicht in: | Organic letters 2021-03, Vol.23 (6), p.2042-2047 |
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| container_end_page | 2047 |
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| container_issue | 6 |
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| container_title | Organic letters |
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| creator | Sambiagio, Carlo Ferrari, Matteo van Beurden, Koen Ca’, Nicola della van Schijndel, Jack Noël, Timothy |
| description | Katritzky salts have emerged as effective alkyl radical sources upon metal- or photocatalysis. These are typically prepared from the corresponding triarylpyrylium ions, in turn an important class of photocatalysts for small molecules synthesis and photopolymerization. Here, a flow method for the rapid synthesis of both pyrylium and Katrizky salts in a telescoped fashion is reported. Moreover, several pyrylium salts were tested in the photoinduced RAFT polymerization of vinyl ethers under flow and batch conditions. |
| doi_str_mv | 10.1021/acs.orglett.1c00178 |
| format | Article |
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Lett</addtitle><date>2021-03-19</date><risdate>2021</risdate><volume>23</volume><issue>6</issue><spage>2042</spage><epage>2047</epage><pages>2042-2047</pages><issn>1523-7060</issn><eissn>1523-7052</eissn><abstract>Katritzky salts have emerged as effective alkyl radical sources upon metal- or photocatalysis. These are typically prepared from the corresponding triarylpyrylium ions, in turn an important class of photocatalysts for small molecules synthesis and photopolymerization. Here, a flow method for the rapid synthesis of both pyrylium and Katrizky salts in a telescoped fashion is reported. 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| ispartof | Organic letters, 2021-03, Vol.23 (6), p.2042-2047 |
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| source | American Chemical Society Journals |
| subjects | Letter |
| title | Continuous-Flow Synthesis of Pyrylium Tetrafluoroborates: Application to Synthesis of Katritzky Salts and Photoinduced Cationic RAFT Polymerization |
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