The depolymerization of lignin from stalks forms cinnamic acid derivatives at lower temperature and phenol derivatives at higher temperature.
木质素解聚产物低温时以肉桂酸酯衍生物为主,高温时以苯酚衍生物为主。
参考来源 - 农作物秸秆在亚/超临界醇中的液化An efficient synthesis of p-methoxy cinnamic acid, a key intermediate for ethyl p-methoxy cinnamate, was developed on the basis of Knoevenagel condensation of p-anisaldehyde with a catalytic amount of ammonium acetate under microwave irradiation in the yield of 87.8%.
目的与方法 以对甲氧基苯甲醛为原料,醋酸铵为催化剂,经Knoevenagel反应,采用微波辐射技术合成了中间体对甲氧基肉桂酸,再以对甲苯磺酸为催化剂,经酯化反应得对甲氧基肉桂酸乙酯。
参考来源 - 对甲氧基肉桂酸乙酯的合成研究TLC methods were used to identify Styrax, Olibanum. HPLC method for cinnamic acid, GC method for bomeol were developed to determine their contents in preparations.
采用TLC法对方中的苏合香、乳香进行定性鉴别;采用HPLC法进行了指标性成分桂皮酸的含量测定,并建立了人体血浆中桂皮酸血药浓度的测定方法;采用GC法进行了冰片的含量测定。
参考来源 - pH依赖型冠心苏合缓释微丸的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
N a white crystalline water-insoluble weak organic acid existing in two isomeric forms; 3-phenylpropenoic acid. The trans- form occurs naturally and its esters are used in perfumery. Formula: C6H5CH:CHCOOH 肉桂酸
OBJECTIVE a method was developed to determine the content of Cinnamic Acid in Suhexiang Pill.
目的建立苏合香丸中肉桂酸含量的测定方法。
Objective: To compare the diversity of contents of Cinnamic acid in Rhizoma Typhonii before and after being processed.
目的:比较禹白附炮制前后桂皮酸含量的变化。
Synthesis of cinnamic acid by means of microexperiment is obviously advantageous compared with the conventional experiment.
与常规实验相比,微型实验有显著的优越性。
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