SYNTHESIS AND DIRECT PHOTOLYSIS OF CIS-1,2-DI-TERT.-BUTYL-CYCLOHEPTENE
1,2-Di-tert.-butyl-cycloheptene 6 was obtained from pimelic acid 1 in a three step sequence via intramolecular reductive coupling of the diketone 5.Direct photolysis of 6 gave endo-1,7-di-tert.-butyl-norcarane 7.