Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三基氯铵)为相转移催成了烟酸。
Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.
苯与丁酰氯在无水三氯铝作催的条件下制备苯基丙基酮。
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ISO standards are not free, and they're not even cheap.
ISO 标准不是免， 且价格也不宜。
And once again, I go online, and I teach myself about ISO and aperture on YouTube.
我再次上网，在 YouTube 上自学 ISO 和光圈。
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划词翻译
详细解释
基氯
铵)为相转移催
成了
烟酸
。
苯与
， 
且价格也不
宜。
8
合集
