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德國拜羅伊特大學(xué)Rhett Kempe教授做客第324期化苑講壇

作者:  發(fā)布:2018-01-03 08:31:02  點擊量:

報告題目:Catalysts for a more sustainable chemistry (面向更為可持續(xù)化的催化化學(xué))

Rhett Kempe教授

報告時間:201814日(周四)上午10:00

報告地點:化學(xué)樓二樓一號會議室

:顧彥龍教授

報告人簡介:

Kempe教授在新型配合物和非均相納米催化領(lǐng)域均取得了杰出的科學(xué)成就。通過應(yīng)用這些催化劑和采用無氫受體的脫氫偶聯(lián)反應(yīng)策略,發(fā)展了一系列由可再生資源轉(zhuǎn)化為功能化氮雜環(huán)的新合成方法。至今,Kempe已在Nat ChemNat CommunJ Am Chem SocAngew Chem Int Ed等國際頂級化學(xué)刊物上發(fā)表研究論文400余篇,并擔(dān)任多個國際知名期刊的編委,獲得過卡爾-溫納克、海森堡等獎項。2004年至2007年間,他擔(dān)任拜羅伊特大學(xué)化學(xué)系的主任;2009年至2015年間,他分別擔(dān)任生物-化學(xué)-地球科學(xué)學(xué)院的副院長和院長;目前,他是拜羅伊特大學(xué)理事會的核心成員。

報告摘要:

   Dwindling reserves of crude oil and other fossil carbon sources combined with environmental concerns have resulted in a call for the use of alternative, preferably renewable resources. Aside from fuel, ultimately a wide variety of chemical feedstocks is derived from fossil sources. Renewable lignocellulosic materials or waste are abundantly available, indigestible and therefore not useful as food products, and can be processed to give alcohols and polyols. Thus, there is a high demand for new reactions that utilize alcohols and convert them into key chemicals.Recently, our group introduced the concept of acceptorless dehydrogenative condensation (ADC) for the catalytic synthesis of important aromatic N-heterocyclic compounds like pyrroles. In such ADC reactions, alcohols become selectively hetero-connected via C-C and C-N bond formation steps. The deoxygenation of alcohols takes place via condensation steps and liberation of H2 leads to aromatization.In the talk, the development of (i) the ADC concept,(ii) ADC reactions, (iii) robustly supported reusable catalysts for ADC, and (iv) nonprecious 3d-metal catalysts for such reactions are discussed.

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