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Topic: grignard reagent out of alcohols  (Read 2592 times)

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Offline asd5110

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grignard reagent out of alcohols
« on: December 17, 2010, 03:40:25 AM »
why cant you make grignard reagents out of alcholos? i understand that you can convert the OH group to a Br using PBr3 in ether and carry on from there. i just wanted to why its not possible
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Offline Hybrid

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Re: grignard reagent out of alcohols
« Reply #1 on: December 17, 2010, 05:08:52 AM »
let me get it , u mean RMgOH instead of RMgBr or RMgBr from ROH
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Offline discodermolide

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Re: grignard reagent out of alcohols
« Reply #2 on: December 18, 2010, 12:28:31 PM »
Quote from: asd5110 on December 17, 2010, 03:40:25 AM
why cant you make grignard reagents out of alcholos? i understand that you can convert the OH group to a Br using PBr3 in ether and carry on from there. i just wanted to why its not possible

You will generate a Magnesium alkoxide not a Grignard reagent. For that you usually require a halide.
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