It's found that the aromatic dinitro compounds can be monoreduced to nitroanilines in high selectivity, aromatic nitro compound s and muti.

本文旨在探索一種具有先進性和創(chuàng)造性的催化方法欧美日韩一级片黄色视频，利用一氧化碳在溫和的條件下高選擇性地還原芳香硝基化合物制備芳胺黄片69。

Prolonging nitration time and increasing reaction temperature would promote the formation of dinitro products while shortening the nitration time and decreasing reaction temperature would promote the formation of mono-nitro products.

延長反應時間和提高反應溫度有利于二硝化產(chǎn)物的形成日韩激情无码一区二区三区91，縮短反應時間和降低反應溫度有利于單硝化產(chǎn)物的形成色哟哟毛片网站。

Aromatic dinitro compounds were reduced irrespective of the presence or absence of β-CD in sodium hydroxide solution, which revealed particularity of aromatic dinitro compounds.These reactions have advantages below over past research results of aromatic nitro compounds:(1) The synthetic method using water as the reaction medium may

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The oxidation of p-nitrotoluene-2-sulfonic acid to prepare 4, 4'-dinitrostilbene-2, 2'-disulfonic acid was monitored, and the mechanism for the formation of by-products 4-nitrobenzaldehyde-2-sulfonic acid and 4-nitro-2-sulfobenzonic acid was suggested.

跟蹤了對硝基甲苯鄰磺酸制備4日韩黄色网站视频大全，4'-二硝基二苯乙烯－2，2'-二磺酸的過程最新精品黄色网站久爱，推測了4-硝基苯甲醛2-磺酸鈉與4-硝基苯甲酸2-磺酸鈉雜質(zhì)的生成機理一级特黄生活视频一区二区。

Nitro-compound such as sodium nitroprusside is used as donor of ectogenic NO in the study.

研究外源性NO對NSCs的調(diào)控作用常用硝普鈉等硝基化合物作為供體。

The experiments showed that the mixture of H2O2 and Na2WO4 or (NH4)2S2O8 in CH3SO3H media is a new kind of efficient oxidant for the synthesis of one or more furazan rings with amino and nitro groups.

研究表明甲烷磺酸/過氧化氫/堿或堿土金屬和胺為基的氧化物混合物是制備同時含有氨基和硝基基團的系列呋咱化合物非常有效的氧化體系亚洲日产欧欧美性饭。

Novel phosphazene cyclomatrix network polymers were synthesized via nucleophilic displacement of activated nitro groups of tri (4-nitrophenoxy)tri cyclotriphosphazene and hexa cyclotriphosphazene with the hydroxyls of bisphenol A.

以三對硝基苯氧基三苯氧基環(huán)三膦腈和六對硝基苯氧基環(huán)三膦腈為主要單體操一操日一日干一干，采用活性硝基親核取代的方法，合成了一類新的環(huán)簇膦腈聚合物嫖妓精品老司机在线观看。

Novel phosphazene cyclomatrix network polymers were synthesized via nucleophilic displacement of activated nitro groups of tri (4-nitrophenoxy) tri cyclotriphosphazene and hexa (p-nitrophenoxy) cyclotriphosphazene with the hydroxyls of bisphenol A.

以三對硝基苯氧基三苯氧基環(huán)三膦腈和六對硝基苯氧基環(huán)三膦腈為主要單體成人午夜在线观看影院免费播放视频，采用活性硝基親核取代的方法，合成了一類新的環(huán)簇膦腈聚合物影音先锋亚洲综合资源在线观看。

Objective:To examine the effects of acute or chronic administration of 7-nitro indazole (7-NI) on the MAC of sevoflurane and cerebellar cGMP levels in mice.

目的：應用神經(jīng)型NO合成酶抑制劑7-硝基吲唑(7－NI)91国内自拍第九页，觀察急、慢性用藥對七氟醚 MAC及小鼠小腦cGMP的影響18禁毛片永久免费观看。

In part Ⅱ, electrophilic substitution reaction of indoles with aldehydes, ketones and 6-Nitro-vinyl catalyzed by dodecylbenzencsulfonic acid in water were studied in detailed.

本文第二部分詳細研究了十二烷基苯磺酸水相催化吲哚與醛99爱精品免费视频在线观看、酮和硝基烯的反應。