Journal
ORGANIC LETTERS
Volume 24, Issue 50, Pages 9228-9232Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c03753Org.Lett.2022
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Funding
- SERB, India
- CSIR
- [CRG/2019/001003]
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The hydrocarbofunctionalization of allyl amines connected to the picolinamide directing group is developed under Pd(II) catalysis. The strategy is based on a nucleopalladation concept and can effectively produce indole derivatives. The synthetic utilities of this reaction, including the Pictet-Spengler cyclization and beta-carboline synthesis, were demonstrated. Mechanistic studies indicate that the reaction proceeds through an irreversible nucleopalladation pathway.
The hydrocarbofunctionalization of allyl amines connected to the picolinamide directing group is developed under Pd(II) catalysis. The strategy is grounded on a nucleopalladation concept, and a wide range of indoles effectively participated to produce valuable tryptamine derivatives in high yields. Synthetic utilities were showcased through the substrate diversification bearing bioactive core, Pictet-Spengler cyclization, and beta-carboline synthesis. A mechanistic study suggested an irreversible nucleopalladation pathway. Hydrocarbofunctionallzation J1 examples, up to 85% yield broad substrate scope biorelevant scaffolds Immovable directing group N R tryptamine scaffolds step, while protodepalladation follows a reversible
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