Synthesis of Dihydropyrano[3,2

Autor: Yoshihide, Usami, Kodai, Sumimoto, Azusa, Kishima, Yuya, Tatsui, Hiroki, Yoneyama, Shinya, Harusawa
Rok vydání: 2018
Předmět:
Zdroj: Molecules
ISSN: 1420-3049
Popis: Three types of pyrazole-fused heterobicycles, i.e., 1,5-, 1,7-, and 2,5-dihydropyrano[3,2-c]pyrazoles, were synthesized from 4-allyloxy-1H-pyrazoles. A sequence of the Claisen rearrangement of 4-allyloxy-1H-pyrazoles, ruthenium-hydride-catalyzed double bond migration, O-allylation, and ring-closing metathesis was employed in this study.
Databáze: OpenAIRE