I just want to confirm that the alcohol s that are secondary and tertiary have a

Question

I just want to confirm that the alcohol s that are secondary and tertiary have a positive reaction with the Lucas reagent, right? So only the butanol and hexanol are the only ones that have a negative reaction?

CHEM 104L ALCOHOLS AND PHENOLS Ferric Chloride and Lucas Test Compound Color of ferric Observation and Time with chloride test Lucas Test Or 1-Butanol 1° -no reach atter io runs 1-Hexanol - no reaction aftir 10 ins 2°- reaction m 2-Propanol oyan minute 2-Methyl-cyclohexanol 2 reactio aftkr Sviunute 2-Methyl-2-propanol ora Phenol purploftr S mintes Unknown arane reachon Question alcohols have a positive reaction with the Lucas reagent? Are these alcohols primary. Which secondary or tertiary?

Explanation / Answer

Ans : butanol and hexanol and phenol will negative reaction with Lucas reagent. Phenol will form unstable carbocataion with lucas reagent. Therefore it will give a negative test.

Phenol will give positive test FeCl3 and not alcohols. Phenols will give purple, green and reddish brown color with FeCl3.

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