Dual Nickel-/Palladium-Catalyzed Reductive Cross-Coupling Reactions between Two Phenol Derivatives
作者:Baojian Xiong、Yue Li、Yin Wei、Søren Kramer、Zhong Lian
DOI:10.1021/acs.orglett.0c02165
日期:2020.8.21
Cross-coupling between substrates that can be easily derived from phenols is highly attractive due to the abundance of phenols. Here, we report a dual nickel-/palladium-catalyzed reductive cross-coupling between aryl tosylates and aryltriflates; both substrates can be accessed in just one step from readily available phenols. The reaction has a broad functional group tolerance and substrate scope (>60
Organocatalyzed Asymmetric Conjugate Addition of Alcohols to β‐Fluoroalkyl Vinylsulfones by Bifunctional Phosphonium Salt Catalyst
作者:Xingjie Luo、Zhiyu Jiang、Siqun Yang、Xiaoyu Ren、Tianli Wang
DOI:10.1002/chem.202401325
日期:2024.7.5
secondary alcohol derivatives with high yields and excellent enantioselectivities. Particularly noteworthy is the utilization of aliphatic alcohols as nucleophiles in the asymmetric oxa-Michael step, overcoming obstacles associated with their direct utilization as Michael donors. Furthermore, a sequential process offers a novel synthetic strategy for constructing essential fluorinated chiral alcohols from
开发了一种不对称有机催化 oxa-Michael 反应来合成具有高产率和优异对映选择性的手性仲醇衍生物。特别值得注意的是在不对称的 oxa-Michael 步骤中使用脂肪醇作为亲核试剂,克服了直接用作 Michael 供体的障碍。此外,连续过程提供了一种新颖的合成策略,用于从容易获得的材料构建必需的氟化手性醇。