ChemInform Abstract: Chiral Lewis Acid-Catalyzed Enantioselective Cycloadditions Between Indoles and Cyclic Carbonyl Ylides Derived from Diazodiketone or Diazoketoester Derivatives.

ChemInform ◽  
2015 ◽  
Vol 46 (46) ◽  
pp. no-no
Author(s):  
Hiroyuki Suga ◽  
Yurie Sekikawa ◽  
Shunta Misawa ◽  
Daito Kinugawa ◽  
Rinnosuke Oda ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed

Enantioselective formal [2+2+2] cycloaddition of 1,3,5-triazinanes to construct tetrahydropyrimidin-4-one derivatives

2021 ◽  
Author(s):  
Peiran Ruan ◽  
Qiong Tang ◽  
Zun Yang ◽  
Xiaohua Liu ◽  
Xiaoming Feng
Keyword(s):  
Lewis Acid ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed

A chiral Lewis acid-catalyzed enantioselective formal [2+2+2] cycloaddition of 1,3,5-triazinanes with azlactones or β,γ-unsaturated pyrazole amides were developed to synthesize chiral tertiary/quaternary tetrahydropyrimidin-4-one derivatives with good yields and enantioselectivities. Two...

Asymmetric catalytic nitrooxylation and azidation of β-keto amides/esters with hypervalent iodine reagents

2022 ◽  
Author(s):  
Changqiang He ◽  
Zhikun Wu ◽  
Yuqiao Zhou ◽  
Weidi Cao ◽  
Xiaoming Feng
Keyword(s):  
Lewis Acid ◽  
Hypervalent Iodine ◽  
Asymmetric Catalytic ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed

Chiral Lewis acid-catalyzed enantioselective nitrooxylation of cyclic and acyclic β-keto amides/esters with hypervalent iodine(III) reagents is reported. A number of α-nitrooxy-β-keto amides/esters were obtained with good yields and high enantioselectivities...

ChemInform Abstract: Chiral Lewis Acid Catalyzed Asymmetric Cycloadditions of Disubstituted Ketenes for the Synthesis of β-Lactones and δ-Lactones.

ChemInform ◽  
2014 ◽  
Vol 45 (24) ◽  
pp. no-no
Author(s):  
Xiaoyu Hao ◽  
Xiaohua Liu ◽  
Wei Li ◽  
Fei Tan ◽  
Yangyang Chu ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed ◽  
Asymmetric Cycloadditions

Chiral Lewis Acid Catalyzed Reactions of α‐Diazoester Derivatives: Construction of Dimeric Polycyclic Compounds

2018 ◽  
Vol 130 (49) ◽  
pp. 16408-16411 ◽  
Author(s):  
Fei Tan ◽  
Xiaohua Liu ◽  
Yan Wang ◽  
Shunxi Dong ◽  
Han Yu ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Polycyclic Compounds ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed ◽  
Catalyzed Reactions

Catalytic asymmetric [2+2] cycloaddition between quinones and fulvenes and a subsequent stereoselective isomerization to 2,3-dihydrobenzofurans

2017 ◽  
Vol 53 (49) ◽  
pp. 6585-6588 ◽  
Author(s):  
Haifeng Zheng ◽  
Chaoran Xu ◽  
Yan Wang ◽  
Tengfei Kang ◽  
Xiaohua Liu ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Chiral Lewis Acid ◽  
Acid Catalyzed ◽  
Catalytic Asymmetric ◽  
First Time ◽  
Cyclobutane Derivatives

A chiral Lewis acid catalyzed enantioselective [2+2] cycloaddition between quinones and fulvenes was reported for the first time. The method afforded a series of [6,4,5]-tricyclic cyclobutane derivatives in good yields with excellent regio- and stereoselectivities. Furthermore, the [2+2] adducts could be easily converted into formal [3+2] adducts efficiently and stereoselectively.

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