Stereoselective synthesis of (−)-1-epi-ventiloquinone L and (+)-ventiloquinone L, the monomeric unit of cardinalin 3

2012 ◽  
Vol 10 (22) ◽  
pp. 4462 ◽  
Author(s):  
Rodney A. Fernandes ◽  
Arun B. Ingle ◽  
Vijay P. Chavan
2006 ◽  
Vol 2006 (12) ◽  
pp. 2777-2785 ◽  
Author(s):  
J. René Backes ◽  
Ulrich Koert

Synthesis ◽  
2020 ◽  
Author(s):  
Kei Kitamura ◽  
Hinano Kanagawa ◽  
Chiharu Ozakai ◽  
Taichi Nishimura ◽  
Hayato Tokuda ◽  
...  

A stereoselective synthesis of a pyranonaphthoquinone derivative found in aromatic polyketide-derived aphid pigments is reported herein. This approach features the anionic [4+2]-annulation of phthalides with a carbohydrate-derived optically active enone. Additional synthetic steps provide access to the monomer fragment of uroleuconaphins and viridaphins. The optimizations for a facile preparation of phthalides bearing sulfonyl or cyano groups are also studied.


2012 ◽  
Vol 14 (11) ◽  
pp. 2858-2861 ◽  
Author(s):  
Kiran Kumar Pulukuri ◽  
Tushar Kanti Chakraborty

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