What is the purpose of NaBH4 in the fluorenone reduction experiment?

Lesson Summary The ketone in fluorenone can be easily reduced to an alcohol by the action of sodium borohydride. Sodium borohydride (NaBH4) is a common reducing agent that reduces ketones to alcohols.

Why is 9-Fluorenone yellow and 9 Fluorenol white?

There is full conjugation of 9-fluorenone that causes it to absorb light of visible frequency. The color appears yellow at the beginning because of 9-fluorenone. Then it is reduced and all the other reactants are colorless so it becomes colorless as well.

What atom or species is oxidized in the conversion of 9 Fluorenol to 9-Fluorenone?

NaOCl
The 9-fluorenone will be oxidized with NaOCl to form the ketone, 9-fluorenone.

Why NaBH4 is used as reducing agent?

Sodium borohydride NaBH4 is less reactive than LiAlH4 but is otherwise similar. It is only powerful enough to reduce aldehydes, ketones and acid chlorides to alcohols: esters, amides, acids and nitriles are largely untouched. It can also behave as a nucleophile toward halides and epoxides.

Why does the reduction in 9-fluorenone cause the coloration of the molecule to disappear?

Provide a reason for the change. There is full conjugation of 9-fluorenone that causes it to absorb light of visible frequency. The color appears yellow at the beginning because of 9-fluorenone. Then it is reduced and all the other reactants are colorless so it becomes colorless as well.

What color is 9-fluorenone in column chromatography?

Fluorene was visible only under UV light because it is a colorless compound, unlike 9-fluorenone which is yellow.

What is the molar mass of 9 Fluorenone?

180.192 g/molFluorenone / Molar mass

Is 9 Fluorenone an organic acid?

The simplest member of the class fluoren-9-ones that is 9H-fluorene bearing an oxo substituent at position 9. This entity has been manually annotated by the ChEBI Team. Fluorenone is an aromatic organic compound with the chemical formula C13H8O. It is used to make antimalaria drugs.

What is the function of NaBH4?

Sodium borohydride (NaBH4) is a reagent that transforms aldehydes and ketones to the corresponding alcohol, primary or secondary, respectively.