以对甲氧基苯甲醛、三氯甲烷为原料,相转移催化羰基加成法合成了对甲氧基苯乙醇酸。
Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
方法采用高效液相色谱法对苯乙醇酸(MA)、苯乙醛酸(PGA)、苯乙烯巯基尿酸(MUA)进行监测。
Methods Urinary mandalic acid(MA), phenylglyoxalic acid(PGA) and mercapturic acid(MUA) of styrene were examined by high performance liquid chromatography(HPLC).
约有30种化合物已从绿茶的香气中鉴别出来,其中主要的有苯甲醇、苯乙醇、已烯醇、沉香醇、香茅醇和甲基水杨酸酯。
Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate.
研究结果表明:经一定条件的高压脉冲电场处理后,葡萄酒中的杂醇油含量有所下降,总酸、总酯和苯乙醇的含量有所上升。
The results showed that the relative contents of fusel oil were decreased; the relative contents of total ester, total acid and phenylethyl alcohol increased after PEF treatment.
葡萄酒主要的香气成分如琥珀酸二乙酯、苯乙醇、辛酸、葵酸,在污染酒样中比例显著减低,甚至未检出。
The main flavoring compositions including diethyl succinate, phenylethanol, octanoic acid and decanoic acid in contaminated grape wine decreased evidently and even not detected.
两种非生物诱导子茉莉酸甲酯和水杨酸都能诱导肉苁蓉悬浮培养细胞苯乙醇甙的生物合成。
The PeG biosynthesis in cell suspension cultures of C. deserticols were stimulated by treating with two abiotic elicitors, which were methyl jasmonate and salicylic acid.
在我们的合成方法中,先从-苯乙醇开始合成了-苯乙基氯,再用丙二酸二乙酯的烯醇盐离子进行亲核取代。
First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.
在我们的合成方法中,先从-苯乙醇开始合成了-苯乙基氯,再用丙二酸二乙酯的烯醇盐离子进行亲核取代。
First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.
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