Asymmetric Mannich Reaction and Construction of Axially Chiral Sulfone-Containing Styrenes in One Pot from α-Amido Sulfones Based on the Waste–Reuse Strategy
作者:Dongmei Li、Yu Tan、Lei Peng、Shan Li、Nan Zhang、Yidong Liu、Hailong Yan
DOI:10.1021/acs.orglett.8b02087
日期:2018.8.17
simultaneous asymmetric Mannichreaction and the construction of axially chiral sulfone-containing styrenes in one pot from α-amidosulfones based on the waste–reuse strategy was demonstrated. A series of chiral β-amino diesters and axially chiral sulfone-containing styrenes with various functional groups were synthesized in good to excellent yields and enantioselectivities under mild conditions. In
Highly Enantioselective Synthesis of N-Protected β-Amino Malonates Catalyzed by Magnetically Separable Heterogeneous Rosin-Derived Amino Thiourea Catalysts: A Stereocontrolled Approach to β-Amino Acids
作者:Hao Zhu、Xianxing Jiang、Xinghua Li、Chen Hou、Yu Jiang、Ke Hou、Rui Wang、Yanfeng Li
DOI:10.1002/cctc.201300089
日期:2013.8
A rosin by any other name: Magnetic‐nanoparticle‐supported bifunctional rosin‐derived tertiary aminothioureacatalysts are developed for the stereocontrolledsynthesis of chiral β‐aminoacids. Boc=tert‐butoxycarbonyl, Bn=benzyl.
Chiral Calcium Iodide for Asymmetric Mannich-type Reactions of Malonates with Imines Providing β-Aminocarbonyl Compounds
作者:Tetsu Tsubogo、Shota Shimizu、Shū Kobayashi
DOI:10.1002/asia.201300102
日期:2013.5
catalytic asymmetric Mannich‐type reactions of malonates with both N‐Boc‐protected aromatic and aliphatic imines, and resulted in moderate to high yields with high enantioselectivities. To the best of our knowledge, this is the first example of highly enantioselective metal‐catalyzed asymmetric Mannich‐type reactions of malonates with N‐Boc‐protected aliphatic imines. The Mannich adduct was successfully