Alpha-substitution of carboxylic acids | Chemical Processes | MCAT | Khan Academy
How to use the Hell-Volhard-Zelinksy (HVZ) reaction to synthesize alpha-amino acids. By Jay. Created by Jay.
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Пікірлер: 5
this stuff is so low yield but im still learning it
Does the NH3 bound to the alpha C because of the major electronegativity of Br than O, that gives to the C a partial d+?
great explanation
Would be easy to understand if you showed detailed mechanism
@josiah5506
Жыл бұрын
The only steps missing were the Bromide ion taking hydroxyl hydrogen and the electrons given to positively charged oxygen at first formation of HBr. Then the Nu- attack of H2O at delta-+ve carbon ejecting bromine as a leaving group since its more stable as an anion, which then attacks hydrogen of newly bound water to leave behind hydroxyl group as C=O bond is reformed. Those mechanisms should be understood if you are learning this HVZ reaction, its definitely assumed knowledge