Control by meta substituents of benzo-vinyl bonding options during triplet sensitized photorearrangement of benzonorbornadienes and anti-7,8-benzotricyclo[4.2.2.02,5]deca-3,7,9-trienes
Control by meta substituents of benzo-vinyl bonding options during triplet sensitized photorearrangement of benzonorbornadienes and anti-7,8-benzotricyclo[4.2.2.02,5]deca-3,7,9-trienes