A selective nitration of calix[4]arene at the upper rim in one pot process was described by monitoring the time dependence of the distribution of products by high-performance liquid chromatography.

通過高效液相色譜實時監(jiān)測杯[4]芳烴上沿選擇性硝化過程国产13页，研究了反應中各種硝化產(chǎn)物的相對濃度隨時間的分布情況黄色毛片在线观看视频了，得到了五種硝化產(chǎn)物在同一反應體系中的最佳獲取時間一级黄色91在线视频。

In this dissertation, I will represent my studies on the nitration of Chalcone derivatives, reaction of epoxide ketone, and the aromatization of 3,5-disubstitued 2-isoxazolines with nitric oxide.

本文主要研究了：(1)NO與查爾酮及其衍生物的硝化反應美女隐私无遮挡免费视频软件，反應以較高的產(chǎn)率得到了a-硝基化合物；(2)NO對環(huán)氧酮的開環(huán)反應乱操视屏，反應生成了順式羥基硝酸酯国产精品无码久久综合网爱天下；(3)3，5-二取代的-2-異惡唑啉在NO作用下可以發(fā)生芳環(huán)化反應国产肏屄自拍，生成了對應的2-異惡唑化合物电影网无码。

Was obtained from vanillin by nitration and demethylation.

中間體3 的制備由香蘭素經(jīng)常溫硝化、脫甲基制得换妻视频在线观看。

Hydroxy-5, 10-dihydrophenophosphazine 10-oxide (1) reacted with SOCl2, and then with MeONa in MeOH to give a methyl phosphinate (2) which can be converted to a dinitro compound 3 (62%) by nitration and the resulting dinitro compound 3 can further be converted to 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide (4, 71%) by hydrogenation over Pd/C (w = 0.05). And the effect of amount of Pd/C (w = 0.05) on the reduction was also studied.

10－羥基－5，10－二氫磷雜吖嗪－10－氧化物（1）經(jīng)醯氯化国产欧美三级片网站、甲基化得到10－甲氧基－5a片黄色片一级片欧美， 10－二氫磷雜吖嗪－10－氧化物（2），2經(jīng)硝化得到10－甲氧基－2色综合久久中文字幕专区一区，8－二硝基－5亚洲视频在线观看视频，10－二氫磷雜吖嗪－10－氧化物（3，62%）午夜精品影院。3在Pd／C（w = 0.05）存在下色网国产，用氫氣還原為2，8二氨基－10－甲氧基－5日韩美女福利网址在线观看视频免费，10－二氫磷雜吖嗪－10－氧化物（4亚洲网站在线播放，71%），考察了Pd／C（w = 0.05）用量對氫化還原反應的影響啊啊啊轻点视频。

The process of preparing NCAGE included the following steps: alkalization of the treated cellulose; etherification of the alkali cellulose; nitration of the water-soluble cellulose ether; and azidation of nitrocellulose glycidol ether.

利用高壓蒸汽閃爆處理后的Novel纖維素為原料www.saomz02.com，經(jīng)過堿化、醚化顶级吹潮视频在线观看、硝化和疊氮化反應www日本com黄色，得到了一種新型高能粘合劑——硝化纖維素疊氮甘油醚，并采用元素分析又黄又粗又爽免费观看日本、DSC国产乱伦窝边操、FIT紅外光譜和X-射線等對其含氮量、結(jié)構(gòu)和性能進行了分析表征美国xxxx69。

Amino-6-nitrobenzodifuroxan was prepared through a three-step reaction from starting material 3, 5-dinitrobenzoic acid:(1)3, 5-dinitroaniline (1) was synthesized from the reaction of DNBA and hydrazoic acid in inert solvent 1, 2-dichioroethane through Schmidt rearrangement with yield of 89.6%;(2) 1 was subjected to nitration to prepare pentanitroaniline (2) with yield of 51.1%;(3) The title compound was prepared from 2 and sodium azide in acetic acid through denitrogenation and then Schmidt rearrangement with yield of 86.8%, m.p.204℃～206℃.

以3美国潢色片AAAwWwA，5-二硝基苯甲酸為原料經(jīng)過3步反應合成了7-氨基6-硝基苯并二氧化吠咱：第1步反應，在二氯乙烷惰性溶劑中国际a片区视频，DNBA與疊氮酸反應并發(fā)生Schmidt重排反應生成3国产精品视频一区二区首页，5-二硝基苯胺(1)欧美老熟妇A乱子视频在线观看，產(chǎn)率89.6%；第2步反應亚洲口咬一级视频，1在含100%硫酸的硝硫混酸中硝化生成五硝基苯胺(2)久久久久久久综合日本亚洲欧美，產(chǎn)率51.1%；第3步反應欧美快射视频合集，2與疊氮酸反應综合在线免费观看三级视频一区二区，不經(jīng)分離直接進行熱解脫氮、Schmidt重排反應在线观看免费毛片，得到目標化合物亚洲群体性爱视频， m.p.204℃~ 206℃，產(chǎn)率86.8%大屌爆艹熟妇无码高清视频。

Xinquan HuTwo new chiral backbones R-- and S--2-amino-2"-hydroxy-4,4",6,6"-tetra methyl-1,1"-biphenyl were synthesized via nitration, diazotation/iodination, Ulhnann coupling, selective reduction, diazotation/hydrolysis, hydrogenation and resolution from 2,4-dimethyl-aniline in seven steps.

以2欧美裸体一级视频，4-二甲基苯胺為起始原料，經(jīng)過硝化反應碰碰精品插下面日本美女去了、重氮化碘代反應亚洲无视频区、Ullmann縮合反應、選擇性雙硝基單還原反應911在线观看国产涩涩、重氮化水解反應超碰欧美图片zxxxx、催化氫化反應和拆分，首次合成了--2-氨基-2'-羥基-480老女人乱婬视频，4'天天日天天干天天天添，6，6'-四甲基-1717电影网理论片我不卡，1'-聯(lián)苯和--2-氨基-2'-羥基-4五月丁香花婷婷综合，4'，6一级黄色视频免费观看，6'-四甲基-1国产精av，1'-聯(lián)苯兩個對映體。

Racemic backbones 2-amino-2'-hydroxy-6,6'-dimethyl-l,l'-biphenyl la and 2-amino-2'-hydroxy-4,4',6,6'-tetramethyl-l,1'-biphenyl 1b were synthesized from o-methylaniline and 2,4-dimethylaniline via nitration, diazotation/iodination, Ullmann coupling, selective reduction, diazotation/hydrolysis and hydrogenation.

從鄰甲苯胺及2欧美激烈精交gif动态图视频，4-二甲基苯胺出發(fā)99久久99这里只有视频精品视频，經(jīng)過硝化，重氮化-碘代国产XXXX免费视频在线观看，偶聯(lián)www,se，單還原，重氮化-水解及還原反應合成了消旋體骨架2-氨基-2'-羥基-6亚洲成av人仙踪林，6'-二甲基-1久久艹视频，1'-聯(lián)苯1a和2-氨基-2'-羥基-4，4'欧美黄色性交网站，697国产一区二区精品久久呦，6'-四甲基-1三级免费观看网站，1'-聯(lián)苯1b。

First, 5-nitro-1 and 4-naphthoquinone are prepared through nitration and oxidization of naphthalene, and then through reduction of nitro into amide, diazotisation of the amide and hydro-lytic action of diazo salt, the juglone is made.

萘經(jīng)過硝化国产美女真人天天爽一级、氧化生成5-硝基-1二级三级毛片，4萘醌，然后硝基還原成氨基在线观看无码AV直接进入、氨基重氮化一级有乳奶水毛片免费、重氮鹽再水解，最終用新方法制得胡桃醌98K免费毛片。

Results indicate that the severity of a loss of control for mononitration of toluene by mixed acid can be reduced from medium to low by using semi-batch reactor, the reaction is 1.2 kinetic order in toluene, 1.3 order in nitric acid and 2.5 order in all. The MTSR_max under setting operating conditions are all in the range that can be accepted by the industrial nitration, so the reaction has less hazard potential by using those setting conditions.

分析結(jié)果表明：在設(shè)定的工藝條件下操逼公司，反應過程中對甲苯的反應級數(shù)是1.2級反應，對硝酸是1.3級反應无码精品视频在线观看网址，采用半間歇反應可以使失控反應的嚴重度等級從中等降低到低等91网国产，在設(shè)定操作條件下假定反應失控所引發(fā)的MTSR_是在工藝條件允許的范圍之內(nèi)，不具有很大的危險性欧美性交播播。