Question

convert 1. ethanol to 3-hydroxy butanal 2.benzaldehyde to alpha-hydroxy phenyl acetic acid

Answer 1

(1) ethanol to 3 hydroxybutanal---
CH3CH2OH + Cu ---300°C----→ CH3CHO
Ethanol Ethanal
2CH3CHO ----OH------→ CH3CH(OH)CH2CHO
aldol condensation. 3 hydroxybutanal
(2) benzaldehyde to alpha-hydroxy phenyl acetic acid---
the photo will be the ans. of 2nd ques.
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