Enzymes in organic synthesis. 46. Regiospecific and stereoselective horse liver alcohol dehydrogenase catalyzed reductions of cis- and trans-bicyclo[4.3.0]nonanones
Photoinduced electron transfer (PET) reactions of α-cyclopropyl-substituted ketones and triethylamine (TEA) were used to initiate the cyclopropylcarbinyl-homoallyl rearrangement. The intramolecular cyclization reaction onto triple bonds was performed yielding bicyclic and spirocyclic compounds. Furthermore, in some preliminary studies it was shown that even intramolecular aromatic substitutions are