Synthesis of 8-hydroxy-and 11-hydroxy-7, 12-dimethylbenz [a] anthracenes. Tin (II) chloride mediated reductions

~83%

~%

~%

~%

~%

~%

~%

~%

~%

~85%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~95%

~%

~%

~%

~85%

~92%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~74%

~%

~%

~%

~%

~%

~%

~%

~%

~81%

~%

~%

~%

~%