Development of Pd(OAc)2-catalyzed tandem oxidation of C N, C C, and C(sp3)–H bonds: Concise synthesis of 1-aroylisoquinoline, oxoaporphine, and 8-oxyprotoberberine alkaloids

Autor: Saeko Nishimoto, Masahiro Toyota, Hiromichi Nakahashi
Rok vydání: 2020
Předmět:
Zdroj: Tetrahedron Letters. 61:152599
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2020.152599
Popis: A catalytic tandem oxidation of C N, C C, and C(sp3)–H bonds is developed. This tandem oxidation is applied to two-step total syntheses of papaveraldine and pulcheotine A. Additionally, the total synthesis of liriodenine is achieved in six steps from homopiperonyl alcohol and 2-bromophenylacetonitrile by applying this catalytic tandem oxidation. Moreover, the direct conversion of xylopinine to 8-oxypseudopalmatine in a 76% yield demonstrates the versatility of this catalytic reaction.
Databáze: OpenAIRE