how to prepare ethoxy ethane from bromo ethane ?
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The efficient conversion of ethane to ethyne (plus hydrogen) is I believe an unsolved problem in chemical engineering. There is such a thing as an ethylene cracker, which uses a brute force approach (very high temperatures) to convert ethane into eth(yl)ene and hydrogen. Some ethyne is produced, but not in commercial quantities.
Ethene can be converted to ethyne as follows:
CH2=CH2 + Br2 → CH2Br-CH2Br
CH2Br-CH2Br + 2 KOH → HCCH + 2 KBr + 2 H2O
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ch3ch2br +KOH - CH3CH2OH + KBr
CH3CH2OH + ch3ch2br - ch3ch2Och2ch3 + HBr
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