Facile access to [1,2]-oxazine derivatives via annulations of aminoxy-tethered 1,7-enynes

Autor: Raji Reddy Chada, Siddique Z. Mohammed, Kamalkishor Warudikar, Nagender Punna, Roshan Chandrakant Kajare, Mayur C. Bhandari, Mahender Khatravath
Rok vydání: 2021
Předmět:
Zdroj: Organic & Biomolecular Chemistry. 19:809-821
ISSN: 1477-0539
1477-0520
DOI: 10.1039/d0ob02279a
Popis: An efficient approach for the highly diastereoselective construction of functionalized cyclopenta[d][1,2]oxazines via sequential oxyamination and Pauson-Khand reaction of readily accessible propargylic alcohols has been developed. Furthermore, the ring closing metathesis of these N-O linked 1,7-enynes afforded vinylated-[1,2]oxazines in good yields. The reduction of the N-O bond of the obtained cyclopenta[d][1,2]oxazine is accomplished to access cyclopentenone-based amino alcohols.
Databáze: OpenAIRE