Beilstein J. Org. Chem.2008,4, No. 31, doi:10.3762/bjoc.4.31
overall yield of 2%.
Mander’s synthesis of sordaricin
As early as 1991, Mander reported model studies [24][25] for sordaricin synthesis using intramolecular [4+2] cycloaddition, and this work culminated in a total synthesis of Sordaricin in 2003 [14][15]. Scheme 4 depicts Mander’s retrosynthetic analysis
Beilstein J. Org. Chem.2005,1, No. 14, doi:10.1186/1860-5397-1-14
unsubstituted and α- or β-methyl substituted 2-cycloenones was also observed.
Introduction
For more than 70 years, the Diels-Alder reaction, or [4+2] cycloaddition reaction, has remained as one of the best powerful organic transformations in chemical synthesis, particularly in obtaining polycyclic rings. Many