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- thienyl diphenylmethane 噻吩二苯基甲烷
- Diphenylmethane would have a two proton peak. 二苯甲烷必定有一个二质子的峰。
- Diphenylmethane diisocyanates (MDI) is an important material used for manufacturing polyurethanes. 摘要二苯甲烷二异氰酸酯(MDI)是重要的聚氨酯原料,市场需求量很大。
- Bis(trichloromethyl) carbonate as the phosgene substitute in the preparation of 4, 4'- diphenylmethane diisocyanate is introduced. 研究了用二(三氯甲基)碳酸酯代替传统的光气进行羰基化反应合成二苯甲烷-4,4’-二异氰酸酯的反应。
- Diphenylmethane (DPM) is a useful chemical material in spice production and an important intermediate in drug and organic synthesis. 二苯基甲烷,通常用于香料工业,同时又是生产染料、医药的重要中间体。
- Using NH?4VO?3 as catalyst and diethyl ether as solvent,benzophenone was obtained quantitatively by the oxidation of diphenylmethane(DPM) with nitric acid. 以w(HNO3)=68%25硝酸做氧化剂,NH4VO3做催化剂,在乙醚溶剂中氧化二苯甲烷得到定量的二苯甲酮(BP)。
- Thienyl)ethylaminewassynthesizedfromchloroacetyl thiophenebycondensation and ammonolysis to give2-aminoacetylthiophene followed by reduction with 85% hydrazine hydrate with an overall yield of 70%. 噻吩和氯乙酰氯经付-克反应得到2-氯乙酰噻吩,氨解得到的2-氨基乙酰噻吩再用85%25水合肼还原得到2-(2-噻吩)乙胺,总收率70%25。
- A method for the synthesis of thienyl and furyl 1,2,3- selenadiazole is reported.Four new compounds were prepared by this method.The compounds were characterized by IR, H NMR, and elemental analysis. 提供了一种合成噻吩基和呋喃基取代的衍生物的方法,并用其合成方法合成了四种未见文献报道的化合物,测定了四种化合物的红外光谱,核磁共振及元素分析值。
- The synthetic methods of diphenylmethane dicarbamic acid esters(MDC ) were reviewed with 31 references. Methylating agent, catalysts that invovlved in the reaction of manufacting MDC were discussed . 综述了二苯甲烷二氨基甲酸酯的合成方法,讨论了合成二苯甲烷二氨基甲酸酯所涉及的甲基化试剂、催化剂。参考文献31篇。
- Cu - meso - tetrakis - ( 2 - thienyl) porphyrin meso-四-(2-噻吩基)铜卟啉
- 4 - [ trans 2 (thienyl) 2 styryl ] - pyridine 4-[反式-2-(噻吩)-2-乙烯基]吡啶
- carbodiimide modified diphenylmethane diisocyanate 碳化二亚胺改性二苯基甲烷二异氰酸酯
- Keywords thienyl)ethylamine;two step reduction method;synthesis; 噻吩乙胺;两步还原法;合成;
- Keywords diphenylmethane diisocyanate;brine;extraction;simulation; 盐水;萃取;模拟;
- Keywords Diphenylmethane Diisocyanate;process;development;market; 二苯基甲烷二异氰酸酯;工艺;进展;市场;
- Synthesis of a New Thienyl Substituted Imidazole Nitronyl Nitroxide Radical 邻位噻吩基取代咪唑类氮氧自由基的合成
- Keywords Co-MCM-41;catalytic oxidation;diphenylmethane;benzophenone; 介孔材料;催化氧化;二苯甲烷;二苯甲酮;
- SYNTHESIS OF MACROMONOMER OF PST CAPPED WITH THIENYL GROUP AND STUDY OF ITS OXIDATION COUPLING POLYMERIZATION 末端为噻吩基的聚苯乙烯大分子单体的合成及其氧化偶联聚合
- HeI spectra of some thienyl polyenic thienyl ketches 1, n_1=0, n_2=0; 2, n_2=1, n_2=0; 3, n_1=2, n_2=0; 本文提供了噻吩多烯基噻吩酮系列化合物[1,n_1=0,n_2=0;n_1=1,n_2=0;n_1=2,n_2=0;n_1=1,n_2=1]的气相HeI光电子能谱(UPS),并进行了每个研究分子的MNDO量子化学计算。
- Keywords imidacloprid;1 (2 bromo 5 thienyl) methyl 2 nitroiminoimidazolidine;pesticide's leadercompounds;insecticidal tests; 吡虫啉;1-(2-溴-5-噻吩基)甲基-2-硝基亚氨基咪唑烷;农药先导化合物;杀虫实验;