DAT destroyer #21 (2011)

[gwb128]

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Ok so i watched all of chad's videos and pretty much under major confusion with what chad pretty much says it should be and what the destroyer saying it is. the question is

2-butanol ----(K2Cr2O7 / H3O+)---> ------(I2 excess / OH-)----> -----(H3O+)----> product

now i know the first is gonna give me the ketone, its the 2nd step im lost. In chad's videos he states that acting a ketone with a base and excess Br2 would give all the beta carbons Bromine in place of there hydrogens. In the destroyer it call the rxn the Haloform rxn, which i guess chops off the carbons to the ketone…

can any1 explain whats going on and i guess what the Haloform rxn is….

Please and Thank You 🙂

 

[Dotoday]

If you Have a METHYL ketone the jt is a haloform, however any other ketone like cyckopentanone or 3 hexanone, that will be an alpha halogenation reaction with I2 and base. Hope this helps.

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