E-42SummativeE: Hydroxy Compounds

Recognize the iodoform group

Deduce a CH3CH(OH)- group from the alkaline iodine test and its yellow triiodomethane precipitate.

As the syllabus states it

Deduce the presence of a CH3CH(OH)– group in an alcohol, CH3CH(OH)–R, from its reaction with alkaline I2 (aq) to form a yellow precipitate of tri-iodomethane and an ion, RCO2 –

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