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- step reaction polymerization 逐步聚合
- Cationic mono-ester surfactants(CMESA)was prepared using glycidyl trimethyl ammonium chloride(GTMAC)and stearic acid as starting materials with a single step reaction. 以自制的失水甘油基三甲基氯化铵(GTMAC)和硬脂酸为原料,经一步反应合成阳离子单酯表面活性剂(CMESA)。
- Homopiperazine was synthesized by using diethylamine as starting material via three step reaction of tosylation,cyclized and detosylation. 以乙二胺为初始原料,经磺酰化、环化、脱磺酰化3步反应合成高哌嗪,总收率可达78%25。
- The calculated results show that the aza Wittig reaction is a two step reaction, having one four membered ring intermediate on its reaction surface. 计算结果表明该反应是一个二步反应，在反应途径上存在一个四元环中间体。
- The organic compounds obtained from the first step reaction are mainly benzophenone,9,10-anthraquinone and 1,3-Diphenylisobenzofuran and so on. 第一步中生成的有机化合物主要成分为二苯甲酮、9，10-蒽醌和1，3-二苯基异苯并呋喃等。
- Probenazole, control of rice blast, was synthesized via a two - step reaction: chlorination and condensation , starting from saccharin. 烯丙异噻唑是用于防治水稻稻瘟病的杀菌剂,以糖精为原料,经氯化,缩合两步反应合成。
- Polymers are most commonly formed by two main types of growth reaction traditionally referred to us condensation (step reaction) and addition (chain reaction) processes. 形成聚合物的最普通方式是靠两种主要的增长反应，习惯上分别称做缩合（逐步反应）过程和加成（链式反应）过程。
- Bromoxynil octanoate was synthesized from bromoxynil,octanoic acid and thionyl chloride in the solvent using DMF and N(C 2H 5) 3 as catalysts by one step reaction. 以DMF、三乙胺为催化剂,在溶剂中,用辛酸直接合成了溴苯腈辛酸酯,实现由酸合成酯的一步反应。
- The new process of preparing glycol polyglucoside by starch and glycol in the presence of an acid catalyst and a catalyst promoter through one step reaction has been studied. 研究了淀粉和乙二醇在酸性催化剂及助催化剂存在下一步直接合成乙二醇葡萄糖苷的工艺,考察了影响反应和产品性能的多种因素。
- Homopiperazine was synthesized by using diethylamine as starting material via three step reaction of tosylation,cyclized and detosylation.The overall yield was 78%. 以乙二胺为初始原料,经磺酰化、环化、脱磺酰化3步反应合成高哌嗪,总收率可达78%25。
- Alkyl polyglucosides were prepared from glucose and lauryl alcohol by one step reaction using p-toluenesulfonic acid and dodecyl benzene sulfonic acid as catalysts respectively. 分别采用对甲苯磺酸和十二烷基苯磺酸为催化剂进行了一步法由葡萄糖和月桂醇制备烷基糖苷的工艺研究。
- A new process for preparation of ethylene glycol menoethyl ether acetate by one step reaction of ethylene oxide and ethyl acetate with Mg/Al composite oxides (Mg-Al-O, LDO) as catalyst is reported. 介绍了以环氧乙烷、乙酸乙酯为原料,Mg Al O体系(镁铝复合氧化物,LDO)作为催化剂,一步合成乙二醇单乙醚醋酸酯(EGEEA)的方法。
- Then the protected D-mannitol, mixed with lead tetraacetate, hippuric and acetic anhydride, were refluxed in THF for 18 h in a one-pot two step reaction to afford a chiral precursor (Z)-2-phenyl-4-[(S)-2,3-O-(isopropylidene)]-propylidene-5(4H)-oxazolones. 产物与四乙酸铅、马尿酸、乙酐于THF中回流18 h完成一釜二步反应，纯化后得到含有手性碳原子的环丙烷氨基酸前体(Z)-2 苯基-4-[(S)-2，3-O-(异丙叉)]丙叉?f唑-5-酮，前体中的手性碳原子可作为环丙烷氨基酸衍生物不对称合成的手性源；
- A novel hybrid monomer 4-(1-propenyl)oxybutyl glycidyl ether(POBGE) was synthesized via three steps reaction. 通过3步反应合成了一种新型杂化单体4-(1-丙烯基)氧丁基缩水甘油醚(POBGE)。
- AIM: A new route of synthesis of benflumetol(I) by 5 step reactions was developed. 目的：设计了抗疟药本芴醇（I）的5步合成新路线。
- Novel amides derivatives of felblinac can be synthesized via six steps reaction from phenylacetonitrile. 以苯乙腈为起始原料,经六步反应合成了四个新型联苯乙酸的酰氨类衍生物。
- He bounced into the room with a springy step. 他以轻快的跑步跳进房间。
- METHODS Bropirimine was synthesized by 3 steps reaction of acylation, cyclization and bromination with ethyl acetoacetate as staring material. 方法以乙酰乙酸乙酯为起始原料,经酰化、环合、溴化3步反应合成溴匹立明。
- METHODS Ranolazine was synthesized by using 2, 6-dimethylaniline and guaiacol as the starting material fellewed by 4 step reactions. 方法以2,6-二甲基苯胺、愈创木酚为原料,经酰化、烃化等4步反应制得雷诺嗪。
- Deoxy-L-ribose,an important intermediate of L-deoxynucleosides,was obtained by five steps reaction with L-arabinose as the starting material. 以L-阿拉伯糖为起始物,通过羟基保护、还原、脱保护等5步反应得到一种重要的L-脱氧核苷类药物中间体2-脱氧-L-核糖。
