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- AIM To develop a simple and economical new approach to the synthesis of 6 [ N (4 aminobutyl) N ethyl] amino 2,3 dihydro 1,4 phthalazinedione (ABEI). 目的建立一种合成化学发光标记试剂6-[N-(4-氨基丁基)-N-乙基]氨基-2,3-二氢-1,4-酞嗪二酮(ABEI)的简便、经济的新方法。
- The route and experiments for synthesis of carbazole violet are described in detail. The process is characterized by using reagent NaHS to reduce 3 nitro N ethyl cabazole in about 2.5 hours. 详细介绍了咔唑紫的合成路线及实验过程。采用硫氢化钠做还原剂;对3硝基N乙基咔唑进行还原;是本合成路线的特点;反应时间约2.;5h。
- Keywords Fluorescence;Kinetic;3 Br N ethyl phenothiazine; 荧光法;动力学;3-溴-N-乙基吩噻嗪;
- A new series of combined metal oxide have been synthesized.Gas solid catalytic N ethylation reaction of m toluidine with ethanol under atmosphere was investigated. 合成了复合金属氧化物催化剂,进行了以乙醇和间甲苯胺为原料,常压固定床反应工艺研究。
- Keywords combined metal oxides;N ethylation;N ethyl m toluidine; 复合金属氧化物;N乙基化;N乙基间甲苯胺;
- SYNTHESIS AND CHARACTERIZATION OF POLY N ETHYL 4 VINYLPYRIDINE AND METHYL ORANGE COMPLEX DYE 阳明书,李建科, 聚-N-乙基-4-乙烯基吡啶/甲基橙复合物染料的合成及性质研究
- Keywords ethyl cyanoacetate;\ ethyl acetoacetate;\ ethyl amine;\ N ethyl 3 cyano 4 methyl 6 hydroxypyridin 2 one;\ derivatives; 氰乙酸乙酯;乙酰乙酸乙酯;乙胺;N-乙基-3-氰基-4-甲基-6-羟基吡啶-2-酮;衍生物;
- Such is the case in pyrrole, thiophene, and furan. 吡咯,噻酚和呋喃的情况就是这样。
- Scheme 1.Condensation of pyrrole and benzaldehyde. 图式1吡咯与苯甲醛的缩合反应。
- Such is the case in pyrrole, thiophene, and furan . 吡咯，噻酚和呋喃的情况就是这样。
- He fought in the N African campaign during the last war. 在上次战争中他在北非战役参战。
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入（一化合物）
- That will be a total of eighty N T. 那总共八十台币。
- Four Polysubstituted Pyrrole N Methylene 1,3,4 Thiadiazoles were synthesized.The structure of related products have been discussed. 合成了一系列取代吡咯-N-亚甲基联1，3，4-噻二唑和相关化合物，并对其结构进行了分析和表征
- Rock-'n'-roll was started in the 1950s. 摇滚乐发源于20世纪50年代。
- Rest unclogs our 18th n substitute af. 请取消我方18日的订单，并以下列代替。
- I can't make head (n)or tail of these instructions. 我对这说明书摸不着头脑.
- The family of nine pig it I n one room. 一家九口挤在一间屋里。
- B: I like listening to Rock 'n' Roll. 我喜欢听摇滚乐。
- Go N to kill the dragon and get the blade. 从北边的房间出去，到山洞中杀龙，得炎之剑。
