1) anhydromethylene citric acid
柠檬酸缩醛环酯
1.
Reaction of citric acid with paraformaldehyde gave anhydromethylene citric acid(Ⅰ) with a yield of 63%;the reaction of compound(Ⅰ) with acetic anhydride gave the corresponding anhydride(Ⅱ) with a yield of 87%;the esterification of compound(Ⅱ) with lauryl alcohol gave anhydrocitric acid monoester(Ⅲ) with a yield of 76%.
将等浓度的柠檬酸和多聚甲醛加热,反应生成柠檬酸缩醛环酯(Ⅰ),产率为63%;(Ⅰ)与乙酸酐反应得到相应的柠檬酸酐(Ⅱ),产率为87%;(Ⅱ)与月桂醇酯化,生成产物(Ⅲ),产率为76%;用二氧六环做溶剂,将(Ⅲ)与等浓度的碱进行开环反应,生成柠檬酸月桂醇单酯(Ⅳ),产率为83%。
2) cyclocitral
环柠檬醛
1.
Yunnan Research Institute of Chemical Industry synthesized the two damascones products via new catalyst with cyclocitral as a starting raw material.
α、β-二氢突厥酮是保加利亚玫瑰油的主要香气物质,云南省化工研究院以环柠檬醛为起始原料,采用新型催化剂得到了这两种二氢突厥酮产品。
3) citrate
[英]['sitreit] [美]['sɪtret]
柠檬酸酯
1.
The property's characteristic,applied scope and the product and consumption of citrate plasticizers of both outside and inside the country at present were introduced,and the market's prospect of the environment frienally plasticizers was also forcasted.
介绍了环境友好型柠檬酸酯类增塑剂的性能特点、应用领域和国内外的生产和消费现状况,并预测了其市场前景。
2.
The progress in synthesis of citrate surfactant are outlined.
介绍了柠檬酸酯直接酯化法和间接酯化法的合成方法 ,重点评述了柠檬酸酯在增塑剂、食品添加剂、洗涤助剂、化妆品添加剂、纺织助剂等方面的应
4) citric acid esters
柠檬酸酯
1.
Research of ionic liquids as catalyst on the synthesis of citric acid esters was one of the hotspot in the esterification of citric acid.
柠檬酸在离子液体催化剂作用下,与醇发生酯化制备柠檬酸酯,是国内外柠檬酸酯化反应的研究热点。
2.
Recent researches on synthesis and application of citric acid esters were introduced.
介绍了近年来柠檬酸酯类化合物的合成方法及主要用途。
5) alpha-Cyclociral
alpha-环柠檬醛
6) xene
异环柠檬醛
补充资料：香柠檬醛
分子式：
CAS号：
性质：无色油状液体。具甜和新鲜的柑橘、药草香气。不溶于水，溶于酒精。相对密度0.865～0.874，折射率1.460～1.468，主要由柠檬醛和甲醛通过Mannich反应制得。用于果香型日用香精。不做食用。
CAS号：
性质：无色油状液体。具甜和新鲜的柑橘、药草香气。不溶于水，溶于酒精。相对密度0.865～0.874，折射率1.460～1.468，主要由柠檬醛和甲醛通过Mannich反应制得。用于果香型日用香精。不做食用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条