Asymmetric [4 + 2] Annulation of Cyclobutenones and Pyrazolone 4,5-Diones: Access to Novel δ-Lactone-Fused Spiropyrazolones.

Autor: Rui Qin, Ting-Ting Yu, Shuai-Jiang Liu, You-Cheng Wang, Meng-Lan Luo, Ben-Hong Chen, Qian Zhao, Wei Huang
Zdroj: Journal of Organic Chemistry; 4/15/2022, Vol. 87 Issue 8, p5358-5370, 13p
Databáze: Supplemental Index