Asymmetric synthesis of chloroisothreonine derivatives via syn-stereoselective Mannich-type additions across N-sulfinyl-α-chloroimines

2014 ◽  
Vol 12 (21) ◽  
pp. 3393-3405 ◽  
Author(s):  
Gert Callebaut ◽  
Filip Colpaert ◽  
Melinda Nonn ◽  
Loránd Kiss ◽  
Reijo Sillanpää ◽  
...  

Mannich-type reactions across N-sulfinyl-α-chloroaldimines resulted in syn-stereoselective synthesis of chloroisothreonine derivatives as excellent building blocks.

2013 ◽  
Vol 85 (8) ◽  
pp. 1683-1692 ◽  
Author(s):  
Valeria Corne ◽  
María Celeste Botta ◽  
Enrique D. V. Giordano ◽  
Germán F. Giri ◽  
David F. Llompart ◽  
...  

Modern organic chemistry requires easily obtainable chiral building blocks that show high chemical versatility for their application in the synthesis of enantiopure compounds. Biomass has been demonstrated to be a widely available raw material that represents the only abundant source of renewable organic carbon. Through the pyrolitic conversion of cellulose or cellulose-containing materials it is possible to produce levoglucosenone, a highly functionalized chiral structure. This compound has been innovatively used as a template for the synthesis of key intermediates of biologically active products and for the preparation of chiral auxiliaries, catalysts, and organocatalysts for their application in asymmetric synthesis.


1995 ◽  
Vol 117 (38) ◽  
pp. 9662-9670 ◽  
Author(s):  
Barry M. Trost ◽  
Michael G. Organ ◽  
George A. O'Doherty

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