Site selectivity in the reactions of 1, 3-dipoles with norbornadiene derivatives

~%

~%

~%

~0%

~0%

~0%

~0%

~0%

~0%

~0%

~90%

~92%

~50%

~12%

~87%

~82%

~87%

~88%

~25%

~83%

~22%

~16%

~%

~13%

~10%

~75%

~18%

~79%

~83%

~44%

~94%

~96%

~60%