Metal-free, high yielding synthesis of unsymmetrical biaryl, bi(heteroaryl), aryl vinyl, aryl alkyl sulfones via coupling of aryne with sulfinic acid salts

Here, we report ametal-free, high yieldingmethod for the synthesis of unsymmetrical biaryl sulfones via coupling of aryne with sulfinic acid salts. The optimized condition also works efficiently for bi(heteroaryl), aryl vinyl and aryl alkyl sulfones. The present method took comparatively shorter reaction times and has good functional group compatibility.