Synthesis of isocoumarins via thallation-olefination of benzoic acids

~55%

~53%

~%

~%

~66%

~85%

~88%

~59%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~77%

~%

~%

~%

~%

~98%