how will you prepare dioxane
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Answer: 1,4-Dioxane can be prepared by ring closure of 2-chloro-2'-hydroxydiethyl ether (formed from ethylene glycol reacting with 1,2-dibromoethane) through heating with 20% sodium hydroxide, and by catalysed cyclo-dimerisation of ethylene oxide either over NaHSO4, SiF4, or BF3, or at an elevated temperature with an acidic ...
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