1) dieckmann condensation
Dieckmann缩合
1.
In this paper, Calone was prepared from 4-methylcatechol dimethylacetate through Dieckmann condensation and acid hydrolysis /decarboxylation.
本文使用4-甲基邻苯二酚二乙酸二甲酯为原料,通过Dieckmann缩合和水解脱羧两步反应合成西瓜酮,并分别优化其工艺条件,对影响Dieckmann缩合和水解脱羧反应的各因素进行了研究。
2.
Methyl 2-oxocyclopentanecarboxylate was obtained via Dieckmann condensation from dimethyl adipate in 82.
以价廉易得的己二酸二甲酯为原料,在甲醇钠的催化下,通过Dieckmann缩合反应得到2-氧代环戊烷羧酸甲酯,收率82。
2) Dieckmann ester condensation
Dieckmann酯缩合
1.
The optimum conditions of the Michael addition,Dieckmann ester condensation reactions was temperature 80 ℃,reaction time 7 h and n(2-methyl-3-oxo-butanedlioic acid diethyl ester)∶n(ethyl acrylate)=1∶1.
Michael加成、Dieckmann酯缩合反应的适宜条件为:以DMF为溶剂,反应温度80℃,反应时间7h,n(2 甲基 3 羰基 丁二酸二乙酯(Ⅰ))∶n(丙烯酸乙酯)=1∶1。
3) retro-Dieckmann reaction
逆-Dieckmann反应
4) condensation reaction
缩合
1.
A monomer of polyimide 2,2′-bis[4-(3-aminophenoxy)phenyl]propane was prepared from m-dinitrobenzene and bisphenol A through condensation reaction and hydrazine hydrate reduction with an overall yield of 85.
提出了以间二硝基苯和双酚A为原料经缩合和水合肼催化还原合成聚酰亚胺的单体2,2′-双[4-(3-氨基苯氧基)苯基]丙烷的新工艺,考察了各类工艺条件对目标产物收率的影响,得到最适宜反应条件,在优化条件下,总收率为85。
2.
This paper researched the condensation reaction of 2-metylbenzimidazole and 2-methylbenzothio-zole with aromatic aldehyde in acetic anhydride to form 2-(benzimidazol-2-yl)-1-aryl-ethylene derivatives or 2-(benzothiozol-2-yl)-1-aryl-ethylene derivatives.
本文研究了2-甲基苯并咪唑和2-甲基苯并噻唑衍生物,在乙酸酐中与芳香醛缩合形成2-(2-苯并咪唑基)-1-芳基乙烯类或2-(2-苯并噻唑基)-1-芳基乙烯类化合物。
3.
The experiments show that the condensation reaction doesn't take place without ultrasonic irradiation, otherwise with ultrasonic irriation the reaction not phly occurs in ordinary condition but also good result was obtained.
本文采用超声辐射法合成了N—苯基间氯苯胺,考察了反应条件对缩合反应的影响。
5) condensation
[英][,kɔnden'seɪʃn] [美]['kɑndɛn'seʃən]
缩合
1.
The application of 1,3-dicyclohexylcarbodiimide(DCC) used as condensation agent in organic synthesis;
缩合剂1,3-二环己基碳二亚胺(DCC)在有机合成中的应用
2.
Condensation of Benzaldehyde and Methanol Catalyzed by Niobic Acid;
铌酸催化的苯甲醛与甲醇缩合反应
3.
Effect of solvent on diazinon condensation;
溶剂对二嗪磷缩合过程的影响
补充资料：Dieckmann reaction
分子式：
CAS号：
性质：指二元羧酸的酯类在金属钠或醇钠作用下发生分子内的克莱森缩合反应，形成环状的β-酮酯，产物水解失羧即可得到环酮类。
CAS号：
性质：指二元羧酸的酯类在金属钠或醇钠作用下发生分子内的克莱森缩合反应，形成环状的β-酮酯，产物水解失羧即可得到环酮类。
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