How to pronounce“mesylate”in English

For instance, you could use tosyl chloride or mesyl chloride to turn alcohols into tosylates or mesylates.

So, later, if we add a nucleophile and do an SN2 reaction on our mesylate, the stereochemistry of the starting alcohol is inverted.

Remember that hydroxide is a poor leaving group, so in this synthesis, we react the alcohol to form a mesylate.

They're big molecules, their electrons are spread out and stabilized by multiple resonance structures, and they have special non-IUPAC names like tosylate, mesylate, and triflate.