 |
 |
 |
| 24小時(shí)熱門(mén)版塊排行榜 |
- >論壇更新日志 (672)
- >導(dǎo)師招生 (68)
- >考研 (48)
- >蟲(chóng)友互識(shí) (27)
- >考博 (20)
- >無(wú)機(jī)/物化 (11)
- >文獻(xiàn)求助 (10)
- >休閑灌水 (7)
- >論文道賀祈福 (4)
- >基金申請(qǐng) (4)
- >教師之家 (4)
- >碩博家園 (4)
- >公派出國(guó) (4)
- >綠色求助(高懸賞) (3)
- >論文投稿 (3)
- >留學(xué)生活 (2)
 |
 |
 |
||
 |
 |
 |
 |
 |
| 30 | 1/1 | 返回列表 |
| 查看: 2438 | 回復(fù): 29 | |||||||
| 【獎(jiǎng)勵(lì)】 本帖被評(píng)價(jià)26次，作者clwang87增加金幣 20.4 個(gè) | |||||||
[資源]
Acc. Chem. Res綜述-“Homeopathic”納米Pd用于碳碳偶聯(lián)反應(yīng)+納米金綜述2篇
|
|||||||
|
新一期的化學(xué)類頂級(jí)綜述Acc. Chem. Res.刊發(fā)了由著名金屬有機(jī)化學(xué)家、法國(guó)科學(xué)院院士、波爾多大學(xué)化學(xué)系Didier Astruc教授課題組撰寫(xiě)的綜述文章--““Homeopathic” Palladium Nanoparticle Catalysis of Cross Carbon–Carbon Coupling Reactions”，發(fā)來(lái)與蟲(chóng)友賞析，希望對(duì)大家有所幫助，話不多說(shuō)，直接上Abstract（附件論文）： Catalysis by palladium derivatives is now one of the most important tools in organic synthesis. Whether researchers design palladium nanoparticles (NPs) or nanoparticles occur as palladium complexes decompose, these structures can serve as central precatalysts in common carbon–carbon bond formation. Palladium NPs are also valuable alternatives to molecular catalysts because they do not require costly and toxic ligands. In this Account, we review the role of “homeopathic” palladium catalysts in carbon–carbon coupling reactions. Seminal studies from the groups of Beletskaya, Reetz, and de Vries showed that palladium NPs can catalyze Heck and Suzuki–Miyaura reactions with aryl iodides and, in some cases, aryl bromides at part per million levels. As a result, researchers coined the term “homeopathic” palladium catalysis. Industry has developed large-scale applications of these transformations. In addition, chemists have used Crooks’ concept of dendrimer encapsulation to set up efficient nanofilters for Suzuki–Miyaura and selective Heck catalysis, although these transformations required high PdNP loading. With arene-centered, ferrocenyl-terminated dendrimers containing triazolyl ligands in the tethers, we designed several generations of dendrimers to compare their catalytic efficiencies, varied the numbers of Pd atoms in the PdNPs, and examined encapsulation vs stabilization. The catalytic efficiencies achieved “homeopathic” (TON = 540 000) behavior no matter the PdNP size and stabilization type. The TON increased with decreasing the Pd/substrate ratio, which suggested a leaching mechanism. Recently, we showed that water-soluble arene-centered dendrimers with tri(ethylene glycol) (TEG) tethers stabilized PdNPs involving supramolecular dendritic assemblies because of the interpenetration of the TEG branches. Such PdNPs are stable and retain their “homeopathic” catalytic activities for Suzuki–Miyaura reactions for months. (TONs can reach 2.7 × 106 at 80 °C for aryl bromides and similar values for aryl iodides at 28 °C.) Sonogashira reactions catalyzed by these PdNPs are quantitative with only 0.01% Pd/mol substrate. Kato’s group has reported remarkable catalytic efficiencies for mesoporous catalysts formed by polyamidoamine (PAMAM) dendrimer polymerizations. These and other mesoporous structures could allow for catalyst recycling, with efficiencies approaching the “homeopathic” behavior. In recent examples of Suzuki–Miyaura reactions of aryl chlorides, chemists achieved truly “homeopathic” catalysis when a surfactant such as a tetra-n-butylammonium halide or an imidazolium salt was used in stoichiometric quantities with substrate. These results suggest that the reactive halide anion of the salt attacks the neutral Pd species to form a palladate. In the case of aryl chlorides, the reaction may occur through the difficult, rate-limiting oxidative-addition step. 初識(shí)Didier Astruc 教授是因拜讀過(guò)教授的Chemical reviews--“Gold Nanoparticles: Assembly, Supramolecular Chemistry, Quantum-Size-Related Properties, and Applications toward Biology, Catalysis, and Nanotechnology”，該綜述現(xiàn)已被引用6800多次，為納米金制備和應(yīng)用領(lǐng)域的不可或缺的文獻(xiàn)之一。前幾天，在版塊里看到了該課題組在Angew. Chem. Int. Ed.發(fā)表的關(guān)于各向異性納米金的綜述文章“Anisotropic Gold Nanoparticles: Synthesis, Properties, Applications, and Toxicity”，一并在附件中，希望各位從事納米金領(lǐng)域研究的蟲(chóng)友喜歡并相互探討，下附教授簡(jiǎn)介（摘自上海交大網(wǎng)頁(yè)）。 Didier Astruc 教授簡(jiǎn)介： Professor Didier Astruc is known for his work on “Electron-Reservoir” complexes and dendritic molecular batteries, catalytic processes (olefin metathesis, C-C coupling, catalysis in water) using nanoreactors and molecular recognition using gold nanoparticles and metallodendrimers. He has published more than 380 publications that have received more than 18000 citations and given 360 research lectures at conferences and Universities or research centers in 25 countries. He is the author of three books, scientific publications and the editor of five books or special issues. Professor Didier Astruc has been a member of the National CNRS committee from 2000 to 2008 and the President of the Coordination Chemistry Division of the Société Française de Chimie from 2000 to 2004. He was elected as a Fellow of the Royal Society of Chemistry (FRSC) in 2005, at the Leopoldina Academy in 2006, the Academia Europaea in 2006, the European Academy of Science in 2007, the European Academy of Sciences and Arts in 2010 and the National Committee for UNESCO in 2012. He is or has been a board member of Organometallics, New J. Chem., J. Inorg. Organomet. Polym., Current Chemistry Biology, The Open Cell and Development Biology Journal, and J. Organomet. Chem. A special issue of J. Inorg. Organomet. Polym. (Springer) and New J. Chem. have been dedicated to Didier Astruc in January 2008 and October 2011 respectively. Professor Didier Astruc is on the Thompson-Reuters list of the top 100 chemists who have achieved the highest citation impact scores for their chemistry papers published between 2000 and 2010. Ten of his former students are now Chemistry Professors or Academic Research Directors in France or the U.S. 課題組網(wǎng)頁(yè)：http://astruc.didier.free.fr/cv-eng.htm ar-2013-00168s_0014.gif |
回復(fù)此樓» 本帖附件資源列表
-
歡迎監(jiān)督和反饋：小木蟲(chóng)僅提供交流平臺(tái)，不對(duì)該內(nèi)容負(fù)責(zé)。
本內(nèi)容由用戶自主發(fā)布，如果其內(nèi)容涉及到知識(shí)產(chǎn)權(quán)問(wèn)題，其責(zé)任在于用戶本人，如對(duì)版權(quán)有異議，請(qǐng)聯(lián)系郵箱：xiaomuchong@tal.com - 附件 1 : ““Homeopathic”_Palladium_Nanoparticle_Catalysis_of_Cross_Carbon–Carbon_Coupling_Reactions”.pdf
- 附件 2 : Anisotropic_Gold_Nanoparticles__Synthesis,_Properties,_Applications,_and_Toxicity.pdf
- 附件 3 : Gold_Nanoparticles _Assembly,_Supramolecular_Chemistry,_Quantum-Size-Related_Properties,_and_Applications_toward_Biology,_Catalysis,_and_Nanotechnology.pdf
2014-01-28 16:48:32, 1.35 M
2014-01-28 16:49:07, 6.93 M
2014-01-28 16:49:19, 1.96 M
» 收錄本帖的淘帖專輯推薦
 reviews paper | 有機(jī)化學(xué) | 學(xué)而實(shí)習(xí)之 | 有機(jī)與催化 |
| 小小 |
» 猜你喜歡
北京航空航天大學(xué)26級(jí)博士招生-生物醫(yī)學(xué)工程-合成生物學(xué)
已經(jīng)有20人回復(fù)
-
溫州大學(xué)王娟課題組2026年招生
已經(jīng)有10人回復(fù)
-
無(wú)機(jī)化學(xué)論文潤(rùn)色/翻譯怎么收費(fèi)?
已經(jīng)有254人回復(fù)
-
溫州大學(xué)2026年招生（化學(xué)、材料）
已經(jīng)有10人回復(fù)
-
招生負(fù)責(zé)_院士團(tuán)隊(duì)_學(xué)生高自由度成長(zhǎng)_擅長(zhǎng)學(xué)生培養(yǎng)
已經(jīng)有5人回復(fù)
-
溫州大學(xué)招收2026年入學(xué)博士研究生（化學(xué)、材料、環(huán)境）
已經(jīng)有10人回復(fù)
-
非晶合金
已經(jīng)有2人回復(fù)
-
院士團(tuán)隊(duì)-每屆學(xué)生都優(yōu)秀-高自由度-團(tuán)隊(duì)氛圍好
已經(jīng)有0人回復(fù)
-
求調(diào)劑
已經(jīng)有0人回復(fù)
» 本主題相關(guān)商家推薦: (我也要在這里推廣)
» 本主題相關(guān)價(jià)值貼推薦，對(duì)您同樣有幫助:
- Acc Chem Res 研究進(jìn)展：形狀控制Pd納米催化及其催化應(yīng)用
已經(jīng)有69人回復(fù)
簡(jiǎn)單回復(fù)
huwei022樓
2014-01-28 20:03
回復(fù)
五星好評(píng) 頂一下，感謝分享！
牛虻吹泡泡3樓
2014-01-28 22:06
回復(fù)
五星好評(píng) 頂一下，感謝分享！
dadum894樓
2014-01-29 00:38
回復(fù)
五星好評(píng) 頂一下，感謝分享！
hdmei5樓
2014-01-29 06:28
回復(fù)
五星好評(píng) 頂一下，感謝分享！
swllover6樓
2014-01-29 09:54
回復(fù)
五星好評(píng) 頂一下，感謝分享！
yourmoon7樓
2014-01-30 14:17
回復(fù)
五星好評(píng) 頂一下，感謝分享！
zhz5228樓
2014-02-01 13:58
回復(fù)
五星好評(píng) 頂一下，感謝分享！
zhg999樓
2014-02-02 07:18
回復(fù)
五星好評(píng) 頂一下，感謝分享！
Nananana10樓
2014-02-02 20:26
回復(fù)
五星好評(píng) 頂一下，感謝分享！
xueyan908811樓
2014-02-02 22:02
回復(fù)
五星好評(píng) 頂一下，感謝分享！
maomao201112樓
2014-02-03 12:33
回復(fù)
五星好評(píng) 頂一下，感謝分享！
wangpinger13樓
2014-02-03 17:27
回復(fù)
五星好評(píng) 頂一下，感謝分享！
yifeixian14樓
2014-02-08 19:50
回復(fù)
五星好評(píng) 頂一下，感謝分享！
niuph15樓
2014-02-22 20:34
回復(fù)
五星好評(píng) 頂一下，感謝分享！
wanghaiji16樓
2014-03-14 11:07
回復(fù)
五星好評(píng) 頂一下，感謝分享！
7621264717樓
2014-03-25 22:32
回復(fù)
五星好評(píng) 頂一下，感謝分享！
Narciss_18樓
2014-03-25 22:51
回復(fù)
五星好評(píng) 感謝分享。 [ 發(fā)自小木蟲(chóng)客戶端 ]
luwangting0819樓
2014-03-26 13:02
回復(fù)
五星好評(píng) 頂一下，感謝分享！
Lvsehx20樓
2014-05-01 20:58
回復(fù)
五星好評(píng) 頂一下，感謝分享！
澹臺(tái)雁冰21樓
2014-06-08 13:45
回復(fù)
五星好評(píng) 頂一下，感謝分享！
澹臺(tái)雁冰22樓
2014-10-13 22:02
回復(fù)
頂一下，感謝分享！
xrg123xrg23樓
2015-05-23 12:27
回復(fù)
五星好評(píng) 頂一下，感謝分享！
aazhuzhu24樓
2015-06-07 10:07
回復(fù)
五星好評(píng) 頂一下，感謝分享！
xrg123xrg25樓
2015-06-09 18:32
回復(fù)
頂一下，感謝分享！
wang_ly15026樓
2015-08-19 14:59
回復(fù)
一般 頂一下，感謝分享！
Nananana27樓
2015-10-21 09:26
回復(fù)
頂一下，感謝分享！
oodoctor28樓
2017-03-18 21:51
回復(fù)
五星好評(píng) 頂一下，感謝分享！
jatie29樓
2017-04-28 02:09
回復(fù)
五星好評(píng) 頂一下，感謝分享！
燈泡30樓
2018-06-11 12:52
回復(fù)
五星好評(píng) 頂一下，感謝分享！
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 clwang87 的主題更新
| 30 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考博] 26博士申請(qǐng) +3 | 1042136743 2026-03-17 | 3/150 |
|
|---|---|---|---|---|
|
|
[考研] 328求調(diào)劑，英語(yǔ)六級(jí)551，有科研經(jīng)歷 +3 | 生物工程調(diào)劑 2026-03-16 | 8/400 |
|
|
[考研] 326求調(diào)劑 +5 | 上岸的小葡 2026-03-15 | 6/300 |
|
|
|
[考研] 312求調(diào)劑 +4 | 陌宸希 2026-03-16 | 5/250 |
|
|
|
[考研] 0854可跨調(diào)劑，一作一項(xiàng)核心論文五項(xiàng)專利，省、國(guó)級(jí)證書(shū)40+數(shù)一英一287 +3 | 小李0854 2026-03-16 | 3/150 |
|
|
|
[考博] 26申博 +4 | 八旬速覽 2026-03-16 | 4/200 |
|
|
|
[考研] 267一志愿南京工業(yè)大學(xué)0817化工求調(diào)劑 +6 | SUICHILD 2026-03-12 | 6/300 |
|
|
|
[考研] 286求調(diào)劑 +3 | lemonzzn 2026-03-16 | 5/250 |
|
|
|
[考研] 321求調(diào)劑 +5 | 大米飯！ 2026-03-15 | 5/250 |
|
|
|
[考研] 0703化學(xué)調(diào)劑 290分有科研經(jīng)歷，論文在投 +7 | 膩膩gk 2026-03-14 | 7/350 |
|
|
|
[考研] 288求調(diào)劑 +4 | 奇點(diǎn)0314 2026-03-14 | 4/200 |
|
|
|
[考研] 289求調(diào)劑 +4 | 這么名字咋樣 2026-03-14 | 6/300 |
|
|
|
[考研] 330求調(diào)劑 +3 | ?醬給調(diào)劑跪了 2026-03-13 | 3/150 |
|
|
|
[基金申請(qǐng)]
有必要更換申報(bào)口嗎
 20+3
|
fannyamoy 2026-03-11 | 3/150 |
|
|
|
[考研] 求調(diào)劑（材料與化工327） +4 | 愛(ài)吃香菜啦 2026-03-11 | 4/200 |
|
|
|
[考研] （081700）化學(xué)工程與技術(shù)-298分求調(diào)劑 +12 | 11啦啦啦 2026-03-11 | 35/1750 |
|
|
|
[考研] 311求調(diào)劑 +3 | 冬十三 2026-03-13 | 3/150 |
|
|
|
[考研] 310求調(diào)劑 +3 | 【上上簽】 2026-03-11 | 3/150 |
|
|
|
[考研] 工科材料085601 279求調(diào)劑 +8 | 困于星晨 2026-03-12 | 10/500 |
|
|
|
[考研] 328化工專碩求調(diào)劑 +4 | 。，。，。，。i 2026-03-12 | 4/200 |
|