Ag. Martinez et al., ABOUT THE TIMING OF WAGNER-MEERWEIN AND NAMETKIN REARRANGEMENTS, 6,2-HYDRIDE SHIFT, PROTON ELIMINATION AND CATION TRAPPING IN 2-NORBORNYL CARBOCATIONS, Tetrahedron, 54(18), 1998, pp. 4607-4614
The reaction of different substituted 2-norbornanones 1 with triflic a
nhydride in the presence of nitriles 6 is carried out in order to stud
y the factors that influence on the different reaction possibilities o
f 2-norbornyl carbocations. The syntheses of interesting annulated pyr
imidine derivatives 10 and conformationally rigid 1,3 disubstituted pr
oducts are described. (C) 1998 Elsevier Science Ltd. All rights reserv
ed.