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Topic: Limited haloform reaction  (Read 4338 times)

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Offline science2000

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Limited haloform reaction
« on: March 01, 2006, 10:15:46 PM »
If there isn't enough of a halogen in a haloform reaction, could a methyl or methylene halide be formed, or would the haloform process be complete but terminate early?
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Offline AWK

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Re:Limited haloform reaction
« Reply #1 on: March 02, 2006, 01:30:43 AM »
During haloform reaction the methylketone undergoes a multistep halogenation
-CO-CH3 => -COCH2X => COCHX2 => -COCX3
The final product of halogenation undergoes fast decomposition to HCX3 in alkaline solution, the other steps are relatively slow..
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Offline FeLiXe

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Re:Limited haloform reaction
« Reply #2 on: March 02, 2006, 11:36:43 AM »
to get mono-halogeno-derivatives you use acid conditions
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Offline science2000

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Re:Limited haloform reaction
« Reply #3 on: March 03, 2006, 02:20:45 AM »
Wouldn't acid conditions give rise to halogenated ketones and acetones?
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