Regio- and Stereoselective Allylic Substitutions of Chiral Secondary Alkylcopper Reagents: Total Synthesis of (+)-Lasiol, (+)-13-Norfaranal, and (+)-Faranal

2018 ◽  
Vol 58 (5) ◽  
pp. 1509-1514 ◽  
Author(s):  
Juri Skotnitzki ◽  
Lukas Spessert ◽  
Paul Knochel
2004 ◽  
Vol 76 (3) ◽  
pp. 495-505 ◽  
Author(s):  
G. Helmchen ◽  
Martin Ernst ◽  
G. Paradies

Synthesis routes are described, allowing all known jasmonoids as well as their enantiomers to be synthesized in enantiomerically and diastereomerically pure form. The routes are based on a set of closely related lactones containing an electrophilic allylic moiety, which are accessible via asymmetric Pd-catalyzed allylic alkylation. Regio- and diastereoselective SN2'-anti-reactions of the electrophilic lactones with organocopper compounds furnished 2,3-cis-disubstituted cyclopentenones, which were further transformed into the target compounds, i.e., 12-oxophytodienoic acid (12-OPDA) in excellent overall yields. The methodology also allowed iridoids and isoprostanes to be prepared. The configuration of an Archaea membrane lipid constituent containing cyclopentane rings was determined by total synthesis of a diol that was also obtained by degradation of the natural product.


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2008 ◽  
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Author(s):  
M Ishibashi ◽  
S Hanazawa ◽  
Y Uchino ◽  
X Li ◽  
MA Arai

Planta Medica ◽  
2013 ◽  
Vol 79 (10) ◽  
Author(s):  
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Y Zou ◽  
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Synlett ◽  
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2006 ◽  
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Eric Deniau ◽  
Pierre Grandclaudon ◽  
Marc Lamblin
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