Synthesis of 1-hydroxybicyclo[3.2.1]oct-3-en-2-ones by Acyloin rearrangement of 1-methoxy- or 1-tert-butyldimethylsilyloxybicyclo [2.2.2] oct-5-en-2-ones
1-Hydroxy-or 1,8-dihydroxy-bicyclo[3,2,1]oct-3-en-2-ones were obtained from 1-methoxy- or 1-tert-butyldimethylsilyloxy-bicyclo[2,2,2]oct-5-en-2- ones via successive processes involving demethylation or desilylation and acyloin rearrangement by reaction wi