查询词典 aryl
- 与 aryl 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the forth part, in the presence of chiral phosphoric acid, highly enantio-enriched (up to 98% ee)α-aryl glycine derivatives could be synthesized via asymmetric transfer hydrogenation of the α-aryl imino esters using Hantzsch ester as the hydrogen source.
第四部分工作中,利用Hantzsch酯作为氢源,高对映选择性地实现了手性磷酸催化芳基酮酸酯亚胺的不对称仿生氢化反应,以最高98%的对映选择性得到苯甘氨酸衍生物。
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The 7-bromo group was replaced with various aniline, and then treated with 4-methoxybenzenesulfonyl chloride to afford the 6-azaindole-1-sulfonamides.The synthesis of 7-aryl-6- azaindole-1- sulfonamide derivatives were prepared by a Suzuki reaction at 7-position, utilizing the 7-bromo-6-azaindole was treated with a variety of phenylboric acid to give the designed 7-aryl substituted 6-azaindoles.
将七号位碳上的溴基取代成各种苯胺类衍生物,再与4-甲氧基-磺基氯苯反应得到6-氮基吲哚-1-磺胺。7-苯基-6-氮基吲哚-1-磺胺类衍生物的合成是以7-溴基-6氮基吲哚-1-磺胺为起始物和各种苯硼酸经由铃木偶合反应在第七号位碳上,得到在第七号位碳上有苯基取代的6-氮基吲哚-1-磺胺。
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The preferred organometallic compounds of the present invention are of the formula (R1)m M(PR23)x, where M is a metal selected from the group consisting of manganese, technetium, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium iridium and platinum wherein m is 0, 1, 2, 3 or 4; x is 2, 3, 4 or 5 and m+x are 2, 3, 4, 5, 6, 7 or 8, m and x selected according to each metals appropriate valence; each R1 is independently selected from the group consisting of hydrogen, deuterium, N2, H2, D2 and a variety of substituted alkyl groups; each R2 is independently selected from the group consisting of lower alkyl, aryl, arylalkyl, and alkyl-Z, aryl-Z and arylalkyl-Z where Z is selected from the group consisting of oxy, silyl, siloxy, oxysilyl, siloxy, oxysiloxy, silyalkyl, oxysilylalkyl, siloxyalkyl, oxysiloxyalkyl, silylalkoxy, silylalkoxy, siloxyalkoxy and oxysiloxyalkoxy; and wherein when M is cobalt and one group R1 is selected to be N2, then m is 2 and the second group R1 is hydrogen or deuterium.
有机化合物的首选本发明的配方是米(R1代)米×(pr23)、那里是一米的金属挑选出来,第一组由锰、锝、铼、铁、钴、镍、钌、铑、钯、锇、铱铂其中M是0、1、2、3或4; X是2,3, 4或5米×+有2,3,4,5,6,7或8 米和X挑选合适的价按每个金属; R1的是每一组由独立选自氢、氘、氮、氢气、 D2和各种烷基取代群体; R2中的每个组由独立选自烷基低、芳、芳基烷基、烷基的Z、芳基、芳基烷基的Z-那里的ZZ是选自组风、含硅、氧、oxysilyl、硅、oxysiloxy,silyalkyl, oxysilylalkyl,siloxyalkyl,oxysiloxyalkyl,silylalkoxy,silylalkoxy,siloxyalkoxy和oxysiloxyalkoxy;其中,M是当钴一派R1的选择是氮气、然后是2米,第二组R1的氘是氢或者。
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The present invention concerns the compounds having the formula N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9-; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is -C-,-O-C-,-NR8-C-,-O-C1-6alkanediyl-C-,-NR8-C1-6alkanediyl-C-,-S2-,-O-S2-,-NR8-S2 ; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC, carboxyl, aminoC, mono- or di(C1-4alkyl)aminoC, C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; R5 and R6 are H or C1-6alkyl.
本发明涉及右式化合物其N-氧化物、盐、立体异构形式、外消旋混合物、前药、酯及代谢物,其中R 1 及R 8 各是氢、C 1-6 烷基、C 2-6 烯基、C 3-7 环烷基、芳基、Het 1 、Het 2 ;R 1 也可以是式(R 11a R 11b )NC(R 10A R 10b )CR 9 -之基;t是0、1或2;R 2 是氢或C 1-6 烷基;L是-C-、-O-C-、-NR 8 -C-、-O-C 1-6 烷二基-C-、-NR 8 -C 1-6 烷二基-C-、-S 2 -,-O-S 2 -、-NR 8 -S 2 -;R 3 是C 1-6 烷基、芳基、C 3-7 环烷基、C 3-7 环烷基C 1-4 烷基或芳基C 1-4 烷基;R 4 是氢、C 1-4 烷基OC、羧基、氨基C、一-或二(C 1-4 烷基)氨基C、C 3-7 环烷基、C 2-6 烯基、C 2-6 炔基或任选被取代的C 1-6 烷基;R 5 及R 6 是氢或C 1-6 烷基。
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In order to get the aryl alkynyl thio ether, we need to synthesize some important terminal functional compounds. Based on the preceding reaearch of our laboratory, we selected methyl thio methyl phenyl sulfone as nucleophilic reagent to eract with aromatic aldehyde and synthesized successfully a series of methylthio aryl ethynes I_ by"one-pot"reaction .
本论文在大量的文献调研和本实验室过去研究结果的基础上,利用亲核硫试剂甲硫基甲基苯基砜(methylthiomethyl phenyl sulfone, MP-S)与芳香醛的&一锅反应&,成功的合成了一系列甲硫芳炔化合物I_,从而为实现形态各异的芳炔硫醚类分子提供了一个良好的构筑平台。
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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.
通过我们首次提出的&自助分子剪裁&的概念从单一起始物快速合成和筛选了一系列膦配体,并发现C4位含3-硝基苯基的的膦配体和醋酸钯联用可以在室温下顺利地催化不活泼氯代芳烃和芳基硼酸的偶联反应,反应条件温和且产物收率很高。
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A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amines as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved. In addition, 1-[3,5-bisphenyl]-2-propanone is a new compound among the synthesized compounds. This approach is an efficient synthetic method for the aryl-propanones with the different substituting groups.
以芳香胺为原料,经重氮化和改进的Meerwein芳基取代反应,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-丙酮是一个新化合物改进后的方法简化了合成步骤,提高了收率,可方便地用于在苯环上具有不同取代基的芳基丙酮的合成。
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Under these conditions several aryl iodides bearing a wide range of functional groups were converted into the corresponding aryl azides in good yields.
在重新优化后的条件下,大部分不活泼芳基溴化物可以与叠氮化钠发生交叉偶联反应得到良好收率的芳基叠氮化合物,但是有拉电子基团取代的芳基溴化物与叠氮化钠的偶联反应则难以进行。
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Under these conditions several aryl iodides bearing awide range of functional groups were converted into the corresponding aryl azides in good yields.
在重新优化后的条件下,大部分不活泼芳基溴化物可以与叠氮化钠发生交叉偶联反应得到良好收率的芳基叠氮化储蓄型投资银条合物,但是有拉电子基团取代的芳基溴化物与叠氮化钠的偶联反应则难以进行。
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In the presence of Pd_2, NaOMe, and EtOH, a variety of aryl iodides and aryl bromides were coupled with arylboronic acids smoothly in very short time.
Pd_2作为催化剂,NaOMe作为碱,EtOH作为溶剂,一系列的碘代和溴代芳烃都能在极短的时间内与芳基硼酸反应得到相应的交叉偶联产物。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。