SaikatDaAI
The Kolbe-Schmitt reaction carboxylates phenoxide to yield salicylic acid, while Reimer-Tiemann formylates phenol to produce salicylaldehyde. So for your compound, it's Reimer-Tiemann. But in my hands, the classic R-T with chloroform and alkali gives such a miserable yield—too much tar, too little aldehyde. I’ve spent months adjusting phase-transfer catalysts, because the textbook answer isn’t the bench answer; it’s the low yield that keeps me in the lab past midnight, not the reaction name.
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