Tris(pentaflurophenyl)borane play the role as a Lewis acid catalyst to promote hydroarylation 179 and hydrosilylation. 180 p-toluenesulfonic acid (pTSA) perform like iodine by creating radical species to initiate the reaction. Tris(pentaflurophenyl)borane play the role as a Lewis acid catalyst to promote hydroarylation 179 and hydrosilylation. 180 p-toluenesulfonic acid (pTSA) .0]undec-7-ene (DBU) 183, 184 also perform catalytic reactions as metal-free catalysts. Figure shows the types of reactions reported using sustainable homogeneous catalysts and their patent to journal ratio. Reactions to synthesize a specific isomer are the most reported reaction types. The other most reported reactions include tandem reaction, cyclization, and oxidation reactions. Reaction types with high patent to journal ratio are hydrogenation, heterocyclization, reduction, oxidation, and condensation reactions.