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|Section2= |Section7= }} Dimethyl carbonate (DMC) is an organic compound with the formula OC(OCH3)2. It is a colourless, flammable liquid. It is classified as a carbonate ester. This compound has found use as a methylating agent and more recently as a solvent that is exempt from the restrictions placed on most volatile organic compounds (VOCs) in the US. Dimethyl carbonate is often considered to be a green reagent. ==Production== Dimethyl carbonate can be prepared by the reaction of phosgene with methanol via methyl chloroformate: : COCl2 + CH3OH → CH3OCOCl + HCl : CH3OCOCl + CH3OH → CH3OCO2CH3 + HCl Overall: : COCl2 + 2 CH3OH → CH3OCO2CH3 + 2 HCl This historical synthesis process is undesirable because of phosgene's toxicity and has been largely replaced by other synthesis routes. It is produced industrially by a transesterification of ethylene carbonate or propylene carbonate and methanol, which also affords respectively ethylene glycol or propylene glycol. A second large scale commercial synthesis route uses a process where carbon monoxide, methanol and oxygen are reacted to form dimethyl carbonate.〔 World production in 1997 was estimated at 1000 barrels a day.〔 Production of dimethyl carbonate worldwide is limited to Asia, the middle east and Europe. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「dimethyl carbonate」の詳細全文を読む スポンサード リンク
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