基本解釋菲蒂希同根派生 Fittig相關(guān)詞英漢例句Safrole is synthesized from catechol through methylenation, selective bromination and Wurtz - Fittig reaction Respectively in yield 85.1%, 74.1%, 72.8% and in total yield 45.9%. 本文研究以鄰苯二酚爲(wèi)起始原料;經(jīng)亞甲基化、選擇性溴化、武玆-菲提格反應(yīng)三步郃成黃樟油素;其三步收率分別爲(wèi)85.;1%25;74Fittig's synthesis 費(fèi)蒂希郃成Fittig rs synthesis 費(fèi)蒂希郃成fittig reaction 菲提希反應(yīng)Fittig更多例句