Polycyclic heteroaromatics via hydrazine-catalyzed ring-closing carbonyl-olefin metathesis.
Polycyclic heteroaromatics via hydrazine-catalyzed ring-closing carbonyl-olefin metathesis.
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DOI:
10.1039/d1sc06234d
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发表时间:
2022-02-23
期刊:
影响因子:
8.4
通讯作者:
Lambert TH
中科院分区:
文献类型:
--
作者:
Cho EK;Quach PK;Zhang Y;Sim JH;Lambert TH
The use of hydrazine-catalyzed ring-closing carbonyl–olefin metathesis (RCCOM) to synthesize polycyclic heteroaromatic (PHA) compounds is described. In particular, substrates bearing Lewis basic functionalities such as pyridine rings and amines, which strongly inhibit acid catalyzed RCCOM reactions, are shown to be compatible with this reaction. Using 5 mol% catalyst loadings, a variety of PHA structures can be synthesized from biaryl alkenyl aldehydes, which themselves are readily prepared by cross-coupling. Hydrazine catalysis enables the ring-closing carbonyl–olefin metathesis (RCCOM) to form polycyclic heteroaromatics, especially those with basic functionality.
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