Aerobic palladium-catalysed 1,4-cis-diacetoxylation and 1,4-cis-chloroacetoxylation of cyclohexa-1,3-diene using a tetrakis(methoxyhydroquinone)porphyrin
Abstract
The use of Co(tetraphenylporphyrins), carrying methoxy substituents in the meso-phenyl groups, in aerobic, quinone-free palladium-catalysed 1,4-oxidations of cyclohexa-1,3-diene provides an entry to cis-disubstituted products, until now inaccessible by aerobic procedures.