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- Mannich base is a corrosion inhibitor with superior property and is applied widely in well acidizing treatments. 曼尼希碱是一类性能优良的缓蚀剂,并在油气井酸化作业中大量应用。
- Then two mannich bases had been prepared by mannich bases reaction. 然后经曼尼希碱反应,生成两种曼尼希碱。
- According to the characteristics of oil reservoir at high temperature, the two corrosion inhibitors that are imidazoline and Mannich base were synthesized. 根据高温油藏的特点,室内合成了咪唑啉类和曼尼希碱两种缓蚀剂,通过失重法分别评价了两种缓蚀剂在15%25盐酸溶液中的缓蚀性能。
- Isopropylidene 5-(3-oxo-alkyl)malonates (3) were synthesized by condensation of Mannich base of isopropylidene malonate with methyl ketones in the presence of faint acid, such as acetic acid. 5-烃基丙二酸亚异丙酯的Mannich碱和甲基酮在弱酸如醋酸的存在下;合成得到缩合产物5-(3-氧代烃基)丙二酸亚异丙酯(3).
- This paper described the Mannich reaction of selenamorpholine, which reacted with aldehydes and acidic components gave seven Mannich bases. 用硒代吗啉与不同的酸组分、醛组分反应得到七个曼尼希反应的产物。
- Keywords isopropylidene Malonate;mannich base;benzaldehyde; 丙二酸亚异丙酯;曼尼希碱;苯甲醛;
- Mannich reaction was carried out between iso-propylidene malonate and aliphatic amines under mild condition. The structures of Mannich bases were confirmed by elementary analysis,IR, 1HNMR and UV spectroscopies. 研究了丙二酸亚异丙酯与脂肪族胺的单取代曼尼希反应 ,通过对曼尼希碱的 IR、UV、1HNMR及元素分析表征了其结构 ,发现其生成的曼尼希碱主要以内盐式存在。
- Keywords cyclopentanone derivative;Mannich base;antiinflammation; 环戊酮衍生物;曼尼希碱;抗炎;
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- Her heavy industry rests on a broad and firm base. 它的重工业有广泛坚实的基础。
- SYNTHESIS OF MANNICH BASES WITH KETONES AS ACIDIC COMPONENTS 用酮作为酸性组分的Mannich碱的合成
- He caught me off base with that question. 他的问题猝然把我给问倒了。
- The bombers swooped on the air base. 轰炸机突袭空军基地。
- Many languages have Latin as their base. 许多语言都以拉丁语为基础。
- His base conduct was condemned by everyone. 他的无耻行为受到所有人的谴责。
- His idea is completely off base. 他的想法大错特错。
- Two soldiers dismounted the gun from the base. 两个战士把炮从底座上卸下来。
- Keywords corrosion inhibitor;high temperature;acidizing;Mannich base;weight loss; 缓蚀剂;高温;酸化;曼尼希碱;失重法;