Ferrario–Ackermann reaction

In organic chemistry, the Ferrario–Ackermann reaction or simply the Ferrario reaction is a name reaction that allow for the generation of phenoxathiin from diphenyl ether and sulfur in the presence of aluminum chloride catalyst.^{[1][2][3][4][5][6]}

Ferrario–Ackermann reaction
Named after	M. E. Ferrario Fritz Ackermann
Reaction type	Ring forming reaction