Carboxylic Acid Derivatives (OCR A-Level Chemistry A): Flashcards

Compound that can be hydrolysed to form parent carboxylic acid

$\text{R-C=O}$

Esters, acyl chlorides, acid anhydrides, amides

Alcohol part first, then acid part

Heat under reflux, conc. $\text{H}_2\text{SO}_4$ catalyst

Carboxylate salt + alcohol (irreversible)

Thionyl chloride ($\text{SOCl}_2$)

Cl is good leaving group, C=O carbon is $\delta^+$

2 moles (one forms amide, one neutralises HCl)

Trigonal planar → tetrahedral → trigonal planar