Facile assembly of bifunctional, magnetically retrievable mesoporous silica for enantioselective cascade reactions

2019 ◽  
Vol 55 (90) ◽  
pp. 13578-13581 ◽  
Author(s):  
Zhongrui Zhao ◽  
Fengwei Chang ◽  
Tao Wang ◽  
Lijian Wang ◽  
Lingbo Zhao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Cross Coupling ◽  
Bifunctional Catalyst ◽  
Cascade Reactions ◽  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation ◽  
Aromatic Alcohols ◽  
Hydrogenation Reactions ◽  
Successive Reduction

A magnetically recyclable bifunctional catalyst enables synergistic Suzuki cross-coupling/asymmetric transfer hydrogenation and successive reduction/asymmetric transfer hydrogenation reactions for the preparation of chiral aromatic alcohols.

scholarly journals Preparation of Mesoporous Silica-Supported Chiral Amino Alcohols for the Enantioselective Addition of Diethylzinc to Aldehyde and Asymmetric Transfer Hydrogenation to Ketones

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Shaheen M. Sarkar ◽  
Md. Eaqub Ali ◽  
Md. Lutfor Rahman ◽  
Mashitah Mohd Yusoff
Keyword(s):  
Mesoporous Silica ◽  
Amino Alcohols ◽  
Optically Active ◽  
Transfer Hydrogenation ◽  
Catalytic Process ◽  
Asymmetric Transfer Hydrogenation ◽  
Chiral Catalyst ◽  
Aromatic Alcohols ◽  
Enantioselective Addition ◽  
Cubic Mesoporous

Optically active (−)-ephedrine, (−)-norephedrine, and (−)-prolinol were immobilized onto cubic mesoporous MCM-48 silica. The immobilized amino alcohols served as a heterogeneous chiral catalyst for the asymmetric addition of diethylzinc to aldehydes and transfer hydrogenation to ketones. The developed catalytic process yielded optically enriches secondary aromatic alcohols with 92–99% conversion and 70–82% enantioselectivity.

Switchable Catalysts Used To Control Suzuki Cross-Coupling and Aza–Michael Addition/Asymmetric Transfer Hydrogenation Cascade Reactions

ACS Catalysis ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 8693-8701 ◽  
Author(s):  
Jingjing Meng ◽  
Fengwei Chang ◽  
Yanchao Su ◽  
Rui Liu ◽  
Tanyu Cheng ◽  
...  
Keyword(s):  
Michael Addition ◽  
Cross Coupling ◽  
Cascade Reactions ◽  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation

Enantioselective tandem reaction over a site-isolated bifunctional catalyst

2016 ◽  
Vol 52 (35) ◽  
pp. 6005-6008 ◽  
Author(s):  
Jianyou Xu ◽  
Tanyu Cheng ◽  
Kun Zhang ◽  
Ziyun Wang ◽  
Guohua Liu
Keyword(s):  
Mesoporous Silica ◽  
Active Site ◽  
Bifunctional Catalyst ◽  
Transfer Hydrogenation ◽  
Tandem Reaction ◽  
Sonogashira Coupling ◽  
Asymmetric Transfer Hydrogenation ◽  
One Pot ◽  
The One ◽  
A Site

An active site-isolated organoruthenium-/organopalladium-functionalized yolk–shell-structured mesoporous silica is developed and its application in the one-pot enantioselective tandem Sonogashira coupling–asymmetric transfer hydrogenation of haloacetophenones and arylacetylenes to various chiral conjugated alkynols is investigated.

Double-shelled hollow mesoporous silica nanospheres as an acid–base bifunctional catalyst for cascade reactions

2018 ◽  
Vol 42 (6) ◽  
pp. 4095-4101 ◽  
Author(s):  
Chunzi You ◽  
Chunqi Yu ◽  
Xiaohui Yang ◽  
Yudong Li ◽  
Hang Huo ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Bifunctional Catalyst ◽  
Cascade Reactions ◽  
Silica Nanospheres ◽  
Acid Base ◽  
Hollow Mesoporous Silica ◽  
Mesoporous Silica Nanospheres

Double-shelled hollow mesoporous silica nanospheres as an acid–base bifunctional catalyst for cascade reactions.

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