報告題目：Catalysts for a more sustainable chemistry （面向更為可持續化的催化化學）
報 告 人 ：Rhett Kempe教授
報告時間：2018年1月4日（周四）上午10:00
報告地點：化學樓二樓一號會議室
邀 請 人 ：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域均取得了杰出的科學成就。通過應用這些催化劑和采用無氫受體的脫氫偶聯反應策略，發展了一系列由可再生資源轉化為功能化氮雜環的新合成方法。至今，Kempe已在Nat Chem、Nat Commun、J Am Chem Soc、Angew Chem Int Ed等國際頂級化學刊物上發表研究論文400余篇，并擔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，他擔任拜羅伊特大學化學系的主任；2009年至2015年間，他分別擔任生物-化學-地球科學學院的副院長和院長；目前，他是拜羅伊特大學理事會的核心成員。
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.
