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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