1) ethyl diazoacetate
重氮乙酸乙酯
1.
The procedure for the preparation of ethyl diazoacetate via the reaction of sodium nitrate with ethyl glycinate hydrochloride was modified.
对亚硝酸钠与甘氨酸乙酯盐酸盐合成重氮乙酸乙酯的过程进行了改进,在滴加亚硝酸钠前给体系中加入适量强酸可以促进反应平稳进行,收率达95。
2.
The new catalyst system of Ru(TPP)(PPh3)2/phenyltrimethylammonium tribromide(PTAT) promoted by ethyl diazoacetate(EDA) is very efficient to catalyze the coupling reaction of various epoxides and CO2 at 323 K and the molar ratio of substrate∶catalyst∶EDA∶PTAT=200∶1∶1∶2.
结果表明,当以Ru(TPP)(PPh3)2为催化剂,重氮乙酸乙酯为助催化剂,苯基三甲基三溴化铵为共催化剂,且底物∶催化剂∶助催化剂∶共催化剂摩尔比为200∶1∶1∶2,反应温度为323 K时,不同环氧化合物都取得了较高的环碳酸酯产率。
3.
The reaction of ethyl diazoacetate(EDA) with N-(styryl)morpholine catalyzed by copper salts provided ethyl 4-oxo-4-phenylbutanoate: in good yield.
主要论述重氮乙酸乙酯(EDA)与N-(苯乙烯基-)吗啉在铜盐催化下的反应,能够以较高的化学产率制备4-氧代-4-苯基-丁酸乙酯。
2) diazoacetate
重氮乙酸酯
1.
The asymmetric cyclopropanation of β-(-)-pinene with diazoacetate was performed in the presence of copper salicylaldehydate, copper diketonates, and copper-Schiff base complexes as the catalyst, respectively.
分别用水杨醛铜、β-二酮-铜和希夫碱-铜络合物为催化剂进行β-(-)-蒎烯与重氮乙酸酯的不对称环丙烷化反应,研究了催化剂结构与反应立体选择性之间的关系,获得了较高的立体选择性。
3) diazo acetic ester
重氮基乙酸乙酯
4) Ethyl diazoethanoate
重氮醋酸乙酯
5) methyl phenyldiazoacetate
重氮苯乙酸甲酯
1.
Enamines were prepared from acetophenone and several secondary amines and examined in the reaction with methyl phenyldiazoacetate catalyzed by copper salts.
在铜盐催化剂的作用下,重氮苯乙酸甲酯与吗啉衍生的烯胺能够发生一种新型加成反应。
2.
A novel addition reaction of methyl phenyldiazoacetate to enamine(which was prepared from acetophenone and secondary amine) was investigated using copper salt as a catalyst.
在铜盐催化下,苯乙酮衍生的烯胺与重氮苯乙酸甲酯(1)发生一种新型加成反应。
补充资料:重氮乙酸乙酯
分子式:C4H6N2O2
分子量:114.10
CAS号:623-73-4
性质:黄色油状液体。熔点-22℃,沸点140-141℃(96.0kPa,微分解),85-86℃(11.73kPa),45℃(1.6kPa),42℃(0.67kPa),相对密度1.0852(18/4℃),折光率1.4605,闪点26℃。溶于乙醇、苯、乙醚,微溶于水。有辛辣气味,易挥发。有爆炸性,与硫酸接触,甚至减压蒸馏时也会发生爆炸。
制备方法:由甘氨酸乙酯盐酸盐与亚硝酸钠反应而得。
用途:用于有机合成。
分子量:114.10
CAS号:623-73-4
性质:黄色油状液体。熔点-22℃,沸点140-141℃(96.0kPa,微分解),85-86℃(11.73kPa),45℃(1.6kPa),42℃(0.67kPa),相对密度1.0852(18/4℃),折光率1.4605,闪点26℃。溶于乙醇、苯、乙醚,微溶于水。有辛辣气味,易挥发。有爆炸性,与硫酸接触,甚至减压蒸馏时也会发生爆炸。
制备方法:由甘氨酸乙酯盐酸盐与亚硝酸钠反应而得。
用途:用于有机合成。
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