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- Keywords synthesis;vanillin;4 hydroxy 3 methoxyphenyl oxime; 合成;香兰素;3甲氧基4羟基苯甲醛肟;
- Keywords dichloromethyl 3 hydroxy 2 methylpyridine;pyritinol hydrochloride;dichloride sulfoxide; 二氯甲基-3-羟基-2-甲基吡啶;盐酸吡硫醇;氯化亚砜;
- Synthesis of S (-) N [(1 ethyl 2 pyrrolidinyl) methyl] 2 hydroxy 3 iodo 6 methoxybenzamide 胡名扬,梁高林, 乙基-2-吡咯烷基)甲基]-2-羟基-3-碘-6-甲氧基苯甲酰胺的合成
- Keywords Hydroxy 3;5;5 trimethyl 2 cyclohexenone;Isophorone;Cyclic condensation; 羟基-3;5;5-三甲基-2-环戊烯酮;异佛尔酮;环化缩合;
- Keywords Aminoquinoline 5 azo) 8 hydroxy 3;6 naphthalenedisulfonic acid;Zinc;Spectrophotometry; 氨基喹啉-5-偶氮)-8-羟基-3;6-萘二磺酸;锌;分光光度法;
- 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
- The farmer paid 3 laborers to gather the crop. 农场主雇佣3名工人收割庄稼。
- These fish vary in weight from 3 lb to 5 lb. 这些鱼的重量从3磅到5磅不等。
- Keywords hydroxy 3;5 dinitrophenyl) 3 (4 phenylazophenyl) triazene;copper;color reaction; 羟基-3;5-二硝基苯基)-3-[4-(苯基偶氮)苯基]-三氮烯;铜;显色反应;
- Keywords hydroxy 3' tertbutyl 5' methylphenyl) 6 chloro benzotriazole;catalytic hydrogenation;synthesis; 羟基-3’-叔丁基-5’-甲基苯基)-6-氯-苯并三唑;催化氢化;合成;
- He lives 3 miles away from here. 他住在距离这里三英里的地方。
- I'm tied up in a meeting until 3 pm. 我开会直到下午三点钟方可脱身。
- Mr. and Mrs. Jones have 3 daughters. 仲斯夫妇有三个女儿。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- The government hopes to hold salary increase to 3%. 政府希望将工次增长率控制在3%25。
- The horse racing is to be held at 3 p.m. tomorrow. 赛马比赛将于明天下午3点举行。
- We ordered 3 cases of soda for the party. 我们为晚会定购了三箱苏打水。
- Keywords hydroxy 3;5 dinitrophenyl) 3 [(4 phenylazo)phenyl] triazene;nickel;color reaction;spectrophotometry; 羟基3;5-二硝基苯基)-3-[4-(苯基偶氮)苯基]-三氮烯;镍;显色反应;分光光度法;
- Above term only apply to dorsa above 3,000 bales. 以上条件,仅适用于三千捆以上的订单。
- The farmer paid 3 labourers to gather the crop. 农场主雇佣3名工人收割庄稼。