The relative removal rate of methyl and methylene group showed the shape of M with the increase of temperature.
甲基与亚甲基的相对脱除速率随温度呈现M型关系。
Cocoa butter equivalent(CBE)production from palm oil m idfraction(POMF)and stearic acid methyl ester(SAME)by interesterification catalyzed by 1,3 specific lipases in solvent free system was studied.
研究了在无溶剂系统中，利用1，3位置特异性脂肪酶催化POMF与硬脂酸甲酯进行酯交换（反应）制取类可可脂。
In the formula (1), R1 represents benzyl group or phenoxy methyl and m represents monovalent cation.
式(1)中，R1表示苄基或苯氧甲基。M表示一价的阳离子。
Diethylene glycol binary m-methyl benzoate was synthesized with diethylene glycol and m-methyl benzoic acid in the presence of tetrabutyl titanate.
以间甲基苯甲酸和二甘醇为原料，钛酸四丁酯为催化剂合成了二乙二醇二间甲基苯甲酸酯。
Diethylene glycol binary m-methyl benzoate was synthesized with diethylene glycol and m-methyl benzoic acid in the presence of tetrabutyl titanate.
以间甲基苯甲酸和二甘醇为原料，钛酸四丁酯为催化剂合成了二乙二醇二间甲基苯甲酸酯。
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