Question
Prepare propyne from isopropyl bromide
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GPT 3.5
To prepare propyne from isopropyl bromide, you can follow the following steps:
1. Begin by converting isopropyl bromide to isopropyl alcohol by reacting it with sodium hydroxide (NaOH) in an alcohol-water mixture. The reaction can be represented as follows:
(CH3)2CHBr + NaOH → (CH3)2CHOH + NaBr
2. Next, dehydrate the isopropyl alcohol to form propene. This can be achieved by passing the isopropyl alcohol vapors over a catalyst such as alumina at a high temperature (around 400-500°C). The dehydration reaction can be represented as follows:
(CH3)2CHOH → CH3CH=CH2 + H2O
3. Lastly, convert propene to propyne by treating it with a strong base such as sodium amide (NaNH2). The reaction can be represented as follows:
CH3CH=CH2 + NaNH2 → HC≡CH + NaH + NH3
After completing these steps, you will have successfully prepared propyne from isopropyl bromide.
1. Begin by converting isopropyl bromide to isopropyl alcohol by reacting it with sodium hydroxide (NaOH) in an alcohol-water mixture. The reaction can be represented as follows:
(CH3)2CHBr + NaOH → (CH3)2CHOH + NaBr
2. Next, dehydrate the isopropyl alcohol to form propene. This can be achieved by passing the isopropyl alcohol vapors over a catalyst such as alumina at a high temperature (around 400-500°C). The dehydration reaction can be represented as follows:
(CH3)2CHOH → CH3CH=CH2 + H2O
3. Lastly, convert propene to propyne by treating it with a strong base such as sodium amide (NaNH2). The reaction can be represented as follows:
CH3CH=CH2 + NaNH2 → HC≡CH + NaH + NH3
After completing these steps, you will have successfully prepared propyne from isopropyl bromide.
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