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- The synthesis of 2 amino 4 methylamino 6 chloro 1,3,5 triazine by amination and methylamination from cyanuric chloride in one reaction system was described. 研究了在同一反應器中由三聚氯氰經(jīng)氨化、甲胺基化合成2氨基4甲胺基6氯三嗪的方法。
- The synthesis of 2 amino 4 methylamino 6 chloro 1,3,5 triazine by amination and methylamination from cyanuric chloride in one reaction system was described. The results showed that the yield was 93%. 研究了在同一反應器中由三聚氯氰經(jīng)氨化、甲胺基化合成2氨基4甲胺基6氯三嗪的方法。確定其優(yōu)惠反應條件,產(chǎn)品收率可高達93%25。
- Methods The rat model of polycyst with renal tumor, similar to human acquired cystic disease of the kidney (ACDK), was induced by oral administration of 2 amino 4,5 diphenylthiazole (DPT) and N nitrosomorpholine (NNM). 方法 用 2 氨基 4,5 二苯噻唑 (DPT)和N 亞硝基嗎啉 (NNM)誘發(fā)與人類(lèi)獲得性腎囊腫 (ACDK)伴腎癌相似的大鼠動(dòng)物模型。
- Methyl 3 nitropyridine was synthesized in 60% overall yield from 2 amino 4 methylpyridine via nitration, replacement of diazonium group by hydroxyl group, chlorination and dechlorination. 以2-氨基-4-甲基吡啶為原料,通過(guò)硝化、重氮化羥基置換、氯化及脫氯等4步反應制得標題物,總收率60%25。
- Keywords metallic salt;2 amino 4;6 dimethoxy pyrimidine;solid complex;constant volume combustion heat;standard molar enthalpy of formation; 金屬鹽;2-氨基-4;6-二甲氧基嘧啶;固態(tài)配合物;恒容燃燒熱;標準摩爾生成焓;
- Keywords thiophenesulfonylurea;benzenesulfonylurea;biological activity;2 methylbenzenesulfonylurea;2 amino 4;5;6 trisubstituted pyrimidine; 噻吩磺酰脲;苯磺酰脲;生物活性;鄰甲苯磺酰脲;2-氨基-4;5;6-三取代嘧啶;
- 4-Methyl 3 nitropyridine was synthesized in 60% overall yield from 2 amino 4 methylpyridine via nitration, replacement of diazonium group by hydroxyl group, chlorination and dechlorination. 以2-氨基-4-甲基吡啶為原料,通過(guò)硝化、重氮化羥基置換、氯化及脫氯等4步反應制得標題物,總收率60%25。
- Amino 4 bromo 5 chlorobenzoic acid is synthesized from nitrobenzene by bromination,reduction,condensation,cyclization,chlorination and oxidation.The overall yield of the 6 steps is 11.7%. 以硝基苯為原料，經(jīng)溴化、還原、縮合、環(huán)合、氯化和氧化等6步反應合成了2-氨基-4-溴-5-氯苯甲酸，總收率為11．7%25。
- 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-氯甲苯為原料;經(jīng)過(guò)氧化;硝化;縮合;還原反應;制成有機顏料中間體N(3’氨基4’氯代)苯甲?；?甲基3氯代苯胺.;對影響反應的諸因素進(jìn)行了討論;產(chǎn)品總收率為57
- The poly(styrene co maleic anhydride)(SMA) was modified by some fluorescent organic molecules 2 amino benzimidazol to prepare the fluorescent polymers(SMI). 2氨基苯并咪唑與苯乙烯馬來(lái)酸酐共聚物(SMA)反應,經(jīng)脫水閉環(huán)制得聚苯乙烯馬來(lái)酰亞胺聚合物(SMI)。
- The doors were numbered 2,4, 6 and 8. 這些門(mén)編為2、 4、 6、 8號。
- The main products are: 1, dyes intermediates Series: 2 - amino -4 - nitrophenol, 2 - amino -4 - nitrophenol sodium, 2,4 - dinitrophenol, dimethylamino-formyl chlorine, etc. 主要產(chǎn)品有：一、染料中間體系列：2-氨基-4-硝基苯酚、2-氨基-4-硝基苯酚鈉、2,4-二硝基苯酚、二甲胺基甲酰氯等；
- If you subtract 2 from 8, you get 6. 8減去2是6。
- The doors were numbered 2,4, 6 and 8. 這些門(mén)編為2、4、6、8號.
- The doors were numbered 2, 4, 6 and 8. 這些門(mén)編為2、4、6、8號.
- Will 2,000 dozens be enough for selling? 兩千打夠賣(mài)嗎？
- The second order nonlinear optical material, 2,4 dinitrophenol (DNP) was synthesized. 合成了二階非線(xiàn)性光學(xué)材料 2 ,4 -二硝基苯酚 (DNP) ,測試了其二次諧波產(chǎn)生 (SHG)的強度和晶體結構。
- The counselor bilked his clients out of$2 million. 那位顧問(wèn)從他的顧客那里騙取了200萬(wàn)美元。
- Every afternoon the baby takes a nap for 2 hours. 每天下午寶寶都要睡兩個(gè)小時(shí)。
- He added 2 gallons of fuel to his car. 他給汽車(chē)加了2加侖油。
