Silicon-Directed Nazarov Cyclizations. P
โ
Scott E. Denmark; Gary A. Hite
๐
Article
๐
1988
๐
John Wiley and Sons
๐
German
โ 829 KB
Minimized strain energies: cis-2j 19.22 kcal/mol, trans-2j 18.14 kcal/mol. In this larger-scale experiment, a significant amount of cis -2i suffered protiodesilylation to cis-2j (H-C(2) at 4.25 ppm (&I) which could not be separated from trans-2j.