基本解釋炔烴同根派生 acetylenes相關(guān)詞英漢例句Acetylenes are an important and valuable class of compounds in organic synthesis. 乙炔是在有機的綜合過程中的一種化合物的重要和有價值的種類。Butynediol produced from acetylen(?) and formaldehyde contains about 1% of an unknown byproduct which is separated by distillation, extraction, recrystallization and column chromatography. 甲醛炔化制1,4-丁炔二醇的反應(yīng)副產(chǎn)物中未知物約1%25,采用蒸餾、萃取、重結(jié)晶、柱層析等方法分離出未知物,純度可達(dá)97%25左右。Palladium-Catalyzed Carbonylation of Acetylenes in Supercritical Carbon Dioxide 超臨界二氧化碳介質(zhì)中鈀催化炔烴羰基化反應(yīng)Keywords Benzo[b]furans;copper-catalyed;Et_3N;o-iodophenols;acetylenes; 苯并呋喃;銅催化;三乙胺;鄰碘苯酚;苯乙炔;Keywords supercritical carbon dioxide;terminal acetylenes;carbonylation; 超臨界二氧化碳;末端炔烴;羰基化反應(yīng);acetylenes更多例句