1,3-Dipolar cycloaddition of diazoalkanes to racemic and optically active α-(diethoxyphosphoryl)vinyl p-tolyl sulfoxides: a new synthesis of 3-phosphorylpyrazoles and asymmetric synthesis of cyclopropanes

Tetrahedron ◽  
1999 ◽  
Vol 55 (51) ◽  
pp. 14791-14802 ◽  
Author(s):  
Wanda H. Midura ◽  
Jerzy A. Krysiak ◽  
Marian Mikolajczyk
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active ◽  
Dipolar Cycloaddition ◽  
New Synthesis

The asymmetric synthesis of CF3-containing spiro[pyrrolidin-3,2′-oxindole] through the organocatalytic 1,3-dipolar cycloaddition reaction

2015 ◽  
Vol 51 (42) ◽  
pp. 8789-8792 ◽  
Author(s):  
Mingxia Ma ◽  
Yuanyuan Zhu ◽  
Quantao Sun ◽  
Xiaoyuan Li ◽  
Jinhuan Su ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Building Block ◽  
Cycloaddition Reaction ◽  
Optically Active ◽  
Dipolar Cycloaddition ◽  
New Strategy

A new strategy for the construction of optically active 5′-CF3 spiro[pyrrolidin-3,2′-oxindole] was described by using CF3CH2NH2 as a building block.

Central–axial–central chirality transfer: asymmetric synthesis of highly substituted indenes bearing a stereogenic quaternary carbon center from optically active propargyl alcohols

2015 ◽  
Vol 51 (2) ◽  
pp. 380-383 ◽  
Author(s):  
Masahiro Egi ◽  
Kaori Shimizu ◽  
Marin Kamiya ◽  
Yuya Ota ◽  
Shuji Akai
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active ◽  
Quaternary Carbon ◽  
Chirality Transfer ◽  
Propargyl Alcohols

An asymmetric synthesis of highly substituted indenes has been developed via the central–axial–central chirality transfer from optically active propargyl alcohols.

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