On the conformation of 8-substituted bicyclo [3.2.1] oct-6-en-3-ones
A series of 8-substituted bicyclo [3.2.1] oct-6-en-3-ones (of type i) possessing various R1 and R2 groups were prepared and characterized. The conformations of the possible isomers of 1-4 were assigned according to the following thre