Enantioselective Synthesis of Dihydrospiro[indoline-3,4′-pyrano[2,3‑<i>c</i>]pyrazole] Derivatives via Michael/Hemiketalization Reaction
收藏NIAID Data Ecosystem2026-03-09 收录
数据链接：
官方服务：
资源简介：
A new bifunctional squaramide organocatalyst derived from l-proline mediated the first enantioselective synthesis of dihydrospiro[indoline-3,4′-pyrano[2,3-c]pyrazole] derivatives in excellent enantioselectivity by reacting pyrazolones with isatylidine β,γ-unsaturated α-ketoester. This new catalyst outperformed widely used thioureas and squaramides in inducing enantioselectivity.
创建时间：
2016-03-14
