Copper(II)-Mediated Ring Opening/Alkynylation of Tertiary Cyclopropanols by Using Nonmodified Terminal Alkynes

Autor: Yan-Ying Cui, Bu-Qing Cheng, Weidong Rao, Guo-Zhi Han, Xue-Qiang Chu, Haiyan Xu, Zhi-Liang Shen, Si-Xuan Zhang
Rok vydání: 2020
Předmět:
Zdroj: Organic letters. 22(14)
ISSN: 1523-7052
Popis: The copper(II)-mediated ring opening/alkynylation of cyclopropanol by employing inexpensive and commercially available terminal alkyne is developed. The reactions proceeded efficiently to afford synthetically useful alk-4-yn-1-ones in moderate to good yields with good functional group tolerance. Control experiments showed that the reaction presumably proceeds via the formation of intermediates of copper homoenolate and/or alkynylcopper species.
Databáze: OpenAIRE