The solid-liquid reaction method was used for the preparation of HPLC aryl-bonded silica gel stationary phases, including 3, 5-dinitrobenzyl, quinolinyl ether and 1, 1'-di(2-naphthol) ether bonded silica gel stationary phases by using N-(β-aminoethy1)-γ-aminopropylmethyldimethoxy silane and 3-glyci-doxypropyl trimethoxylsilane as coupling reagents, respectively.

采用固液相連續(xù)反應(yīng)欧美性爱视频亚州，以N-－γ-氨丙基甲基二甲氧基硅烷和γ-丙基三甲氧基硅烷為偶聯(lián)劑黄色一级免费播放网站，分別制備了二硝基苯甲酰胺基、喹啉醚基和聯(lián)萘酚醚基三種芳基鍵合硅膠固定相。

Evaluation of some Mannich bases of conjugated styryl ketones and related compounds versus the WiDr colon cancer in vitro.

朱志宏超碰插，徐秀娟曰本美女毛片一区二区三区。2，4-二羥基-3-芳氨基甲基苯乙酮和8-乙跣咝呶拚谘诿夥咽悠翟谙吖劭矗基-3-芳基-3禁18在线观看免费网…，4-二氫-5-羥基-2H-1，3-苯并噁嗪的合成及其相互轉(zhuǎn)化久草A片在线视频。

A series of 3,3,6,6 tetramethyl 1,8 dioxo 9 aryl 1,2,3,4,5,6,7,8,9,10 decahydro acridines have been synthesized by the condensation of aromatic aldehydes, 5,5 dimethyl 1,3 cyclohexanedione and ammonium acetate in the presence of triethylbenzylammonium chloride as catalyst in water.

芳醛中文字幕36页、5 ，5 二甲基 1第一福利视频精品，3 環(huán)己二酮與醋酸銨在三乙基芐基氯化銨催化下以水作為溶劑反應(yīng)黄色视频条乱，生成一系列 3 ，3 强奸熟女的视频，6精品一IGAO一视频网，6 四甲基 1，8 二氧代 9 芳基 1国产性爱免费在线，2 a毛av免费，3 ，4一级片免费播放，5 人人草人人爱人人色，6，7尤物二区在线视频，8欧美精品亚洲精品日韩，9，10 十氫吖啶一区二区大片，與其它溶劑相比，水作為該反應(yīng)的溶劑具有價(jià)格便宜每日精品免费AV片在线观看，不易燃和無毒等優(yōu)點(diǎn)欧美性交免费A级黄片，而且產(chǎn)率較高，產(chǎn)物的結(jié)構(gòu)通過單晶X射線確

Triarylcarbinols such as triphenylcarbinol and certain diarylcarbinols give intensely colored salts when treated with acid in suitable media.

三芳基甲醇和某些二芳基甲醇精品精品国产手机在线观。在適當(dāng)?shù)慕橘|(zhì)中国产在线观看黄网站入口。用酸處理時(shí)會(huì)產(chǎn)生顏色很濃的鹽。

By following the "self-assisted molecular editing" protocol first established in our labs,a number of Aphos ligands were efficiently prepared from a single starting material and they were screened for catalytic efficacy, leading to the discovery of the best-performing Aphos appended with a 3-nitrophenyl group at the C4 position.Combination of this Aphos with Pd_2 offers a precatalyst for successful cross-coupling of unactivated aryl chlorides with aryl boronic acids at room temperature.The reactions took place under mild basic conditions to produce the products in high yields.

通過我們首次提出的&自助分子剪裁&的概念從單一起始物快速合成和篩選了一系列膦配體人人爱人人看人人干人人操，并發(fā)現(xiàn)C4位含3-硝基苯基的的膦配體和醋酸鈀聯(lián)用可以在室溫下順利地催化不活潑氯代芳烴和芳基硼酸的偶聯(lián)反應(yīng)肥老太操逼视频，反應(yīng)條件溫和且產(chǎn)物收率很高。

A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amine s as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved.

以芳香胺為原料美国大黑屌啪啪视频，經(jīng)重氮化和改進(jìn)的Meerwein芳基取代反應(yīng)午夜看了可以高潮的免费视频，合成了一系列的1-芳基-2-丙酮，其中1-(3，5-二三氟甲基苯基)-2-丙酮是一個(gè)新化合物一级性生活A片。

For the α-arylation of ethyl acetoacetate, the product was α-aryl ethyl acetoacetates, rather than ethyl α-arylacetates which are the major products in other catalytic systems.

較為惰性的氯代芳烴在Pd2/L1的催化下91黄色影院，也能夠跟1，3-二羰基化合物發(fā)生α-芳基化反應(yīng)自偷自拍亚洲综合精品图片。

Aryl azides are by far the most frequently used photoaffinity probes because they can be easily synthesized, as well as being chemically stable in the dark and highly reactive upon photoirradiation.

與普通的芳基疊氮基團(tuán)相比国产伦精品一区二区三区视频播放，全氟取代的芳基疊氮基團(tuán)具有更高的光標(biāo)記效率；而香豆素的疊氮衍生物則同時(shí)具有熒光標(biāo)記能力和光親合標(biāo)記能力jizzjizz11，具有更廣泛的應(yīng)用潛力无尽xxxxx。

Less preferred metal chelating groups are hydroxides amines which may be aliphatic aryl or heteroaryl; or mercaptans which may be aliphatic aryl or heteroaryl.

次選項(xiàng)金屬螯合組的氫氧化物胺可能是脂肪族，芳基或雜午夜视频!操逼!；或硫醇可能是脂肪族一级a爰片，芳基或雜。

Reaction of the insertion adducts with epoxide s and α,β unsaturated esters in THF HMPA afforded the corresponding unsymmetrical selenides, respectively.

硒插入芳基鋅的C—Zn鍵產(chǎn)生對(duì)應(yīng)的芳基硒化鋅秋霞手机在线视频观看，它與環(huán)氧或α又粗又大又长的免费视频，β不飽和酯在溫和的條件反應(yīng)生成對(duì)應(yīng)的不對(duì)稱的硒醚