Chiral tertiary 2-furyl alcohols: diversified key intermediates to bioactive compounds. Their enantioselective synthesis via (2-furyl)aluminium addition to ketones catalyzed by a titanium catalyst of (S)-BINOL

2008 ◽  
pp. 2343 ◽  
Author(s):  
Kuo-Hui Wu ◽  
Da-Wei Chuang ◽  
Chien-An Chen ◽  
Han-Mou Gau
2017 ◽  
Vol 8 (12) ◽  
pp. 8086-8093 ◽  
Author(s):  
Bruno Matos Paz ◽  
Yang Li ◽  
Mathias Kirk Thøgersen ◽  
Karl Anker Jørgensen

An enantioselective organocatalytic strategy, combining Brønsted base and N-heterocyclic carbene catalysis in a unique manner, is demonstrated for a concise construction of the privileged cyclopenta[b]benzofuran scaffold, present in many bioactive compounds having both academic and commercial interests.


Synthesis ◽  
2020 ◽  
Vol 53 (01) ◽  
pp. 107-122
Author(s):  
Jean-François Brière ◽  
Mario Waser ◽  
Antonio Massa ◽  
Antonio Macchia ◽  
Andreas Eitzinger

AbstractIsoxazol-5-ones and isoxazolidin-5-ones represent two important classes of heterocycles, with several applications as bioactive compounds and as versatile building blocks for further transformations. Unlike the parent aromatic isoxazoles, the presence of one or two stereocenters in the ring renders their asymmetric construction particularly important. In this review, starting from the description of general features and differences between these two related compound families, we present an overview on the most important enantioselective synthesis strategies to access these heterocycles. Both chiral metal catalysts and organocatalysts have recently been successfully employed for this task and some of the most promising approaches will be discussed.1 Introduction2 Isoxazol-5-ones as Nucleophiles2.1 Isoxazol-5-ones as C-Nucleophiles2.2 Isoxazol-5-ones as N-Nucleophiles2.3 Isoxazol-5-ones as C-Nucleophiles in Cyclization Processes3 Asymmetric Construction of Isoxazolidin-5-ones3.1 Enantioselective α-Functionalizations of Isoxazolidin-5-ones4 Arylideneisoxazol-5-ones in Conjugated Addition5 Conclusions


Author(s):  
Xin-Ming Xu ◽  
Ming Xie ◽  
Jiazhu Li ◽  
Mei-Xiang Wang

An exquisite Pybox/Cu(OTf)2-catalyzed asymmetric tandem reaction of tertiary enamides was developed, which enabled the expeditious synthesis of indolizino[8,7-b]indole derivatives in high yield, excellent enantioselectivity and diastereoselectivity.


Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
B Biloa Messi ◽  
R Ho ◽  
A Meli Lannang ◽  
JG Tangmouo ◽  
A Marston ◽  
...  
Keyword(s):  

Planta Medica ◽  
2012 ◽  
Vol 78 (05) ◽  
Author(s):  
L Bohlin ◽  
C Alsmark ◽  
U Göransson ◽  
M Klum ◽  
C Wedén ◽  
...  
Keyword(s):  

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
C Jones ◽  
MJ Bull ◽  
M Jenner ◽  
L Song ◽  
Y Dashti ◽  
...  

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