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- Keywords photosensitized initiator;2 hydroxy 2 methyl 1 propiophenone;synthesis; 光敏引发剂;2-羟基-2-甲基-1-苯基丙酮;合成;
- Syntheses and Characterization of Bridged Bis(2 mercapto 5 methyl 1,3,4 thiadiazole) Compounds and Their Complexes. 桥联双(2-巯基-5-甲基-1,3,4-噻二唑)化合物及其配合物的合成和表征
- Keywords sodium 2 acrylamido 2 methyl 1 propane sulfonate;N vinyl pyrrolidone;acrylamide;sodium acrylate; 关键词2-丙烯酰胺基-2-甲基丙磺酸钠;N-乙烯基吡咯烷酮;丙烯酰胺;丙烯酸钠;
- Keywords Balaps japanensis yunnanensis Mars;medicinal insect;antibiotic constituents;2 methyl 1;4 benzenediol;hydroquinol; 云南琵琶甲;药用昆虫;抗菌成分;2-甲基-1;4-苯二醇;对苯二酚;
- Keywords hydrogels;sodium 2 acrylamido 2 methyl 1 propane sulfate;（3 methacrylamidipropyl） trimethyl ammonium chloride;ampholytic hydrogel; 水凝胶;2-丙烯酰胺基-2甲基丙磺酸钠;（3-甲基丙烯酰胺基）丙基三甲基氯化铵;两性离子型水凝胶;
- BCO, Mephen and Me 2phen denote biscyclohexanone oxalyldihydrazone, 5 methyl 1,10 phenanthroline and 2,9 dimethyl 1,10 phenanthroline respectively. were synthesized from biscyclohexanone oxalyldihydrazon. BCO=二环己酮草酰二腙 ,Mephen=5-甲基 - 1 ,1 0 -邻菲咯啉 ,Me2 phen=2 ,9-二甲基 - 1 ,1 0 -邻菲咯啉。
- Methods: According to the structur e of the lead compound: genistein,a genistein derivative,5 hydroxy 4' nitro 7 sustituted oxo isoflavones were designed and synthesized. 方法:根据先导化合物金雀异黄素的结构,设计合成了一类金雀异黄素衍生物:5-羟基-4'-硝基-7-取代氧基异黄酮。
- Hydroxy m phthalic acid was synthesized from m xylene through oxidization,sulfonation,basic melt,acidification. The total yield of 5 hydroxy m phthalic acid reached 72%(from m phthalic acid). 以间二甲苯为原料，经氧化、磺化、碱熔、酸化合成5-羟基间苯二甲酸，其总产率为72%25（以间苯二甲酸计）。
- A Novel 4 Hydroxy 2 hydroxymethyl 2 heptadecyl 1,5 valero lactone from Fish Heart of Aristichthys Nobilis 鱼心中新的4-羟基-2-羟甲基-2-十七烷基-1,5-戊内酯的研究
- Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst. 由苯与异丁酰氯在无水三氯化铝作催化剂的条件下制备苯基异丙基酮。
- 4 Chloro 4,5 dimethyl 1,3 dioxolan 2 one was synthesized from 3 hydroxy 2 butanone by acylation and cyclization, the yield was above 86%. 以羟基丁酮为原料,经酰化、环合等步骤合成医药中间体4氯4,5二甲基1,3二氧杂环戊烷2酮,合成收率达86%25以上
- By oxidation,nitration,condensation,reduction,a organic pigment intermidiate N (3' amino 4' chloro)benzoyl 2 methyl 3 chloroaniline was prepared,through using 4 chloromethylbenzene as first material. 以4-氯甲苯为原料;经过氧化;硝化;缩合;还原反应;制成有机颜料中间体N(3’氨基4’氯代)苯甲酰基2甲基3氯代苯胺.;对影响反应的诸因素进行了讨论;产品总收率为57
- The intermidiate of Leminon [2 methyl N methyl N (2 methylphenyl) propionate amid] has been synthesized via nitration,reduction,acylation and methylation from toluene. 以甲苯为原料,通过硝化、还原、酰化、甲基化合成了莱敏拉唑中间体2-甲基-N-甲基-N-(2-甲基苯基)-丙酰胺
- Convenient Method for Monitoring Synthesis Process of 4,5 Diamino 6 hydroxy 2 mercaptopyrimidine 孙学芹, 巯基-6-羟基-4,5-二氨基嘧啶合成过程中的简便鉴定方法
- Keywords hydroxy 2 naphthyl hydroxamic acid flotation bastnaesite; 羟基-2-萘羟肟酸;氟碳铈矿;浮选;电负性;螯合特性;
- methyl 1 - acetylazulene - 3 - carbolate 1-乙酰基奥-3-甲酸甲酯
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- The winning time was 1 minute 5 seconds. 获胜的时间是1分零5秒。
- Can you count backwards from 5? Yes, 5, 4, 3, 2, 1. 你能从5倒着数吗?可以，。
- Ratio of 5 to 10 equal to ratio of 1 to 2. 5与10之比，相当于1与2之比。
