Organic Process Research and Development p. 443 - 451 (2019)
Update date:2022-08-16
Topics:
Shigeno, Masanori
Fujii, Yuki
Kajima, Akihisa
Nozawa-Kumada, Kanako
Kondo, Yoshinori
Heteroarene formylations in DMF solution proceed in the presence of an amide base catalyst generated in situ from tetramethylammonium fluoride (TMAF) and tris(trimethylsilyl)amine (N(TMS)3). The reaction proceeds at room temperature and has an operationally simple procedure. Various heteroarenes, including benzothiophene, thiophene, benzothiazole, oxazole, and indole derivatives, can be formylated with high functional group tolerance.
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