Tert‐Butyl Nitrite‐initiated C−N Bond Cleavage of 1‐Nitromethyl‐N‐aryltetrahydroisoquinolines: Synthesis of Furoxans with N−NO Skeleton
摘要:
AbstractA series of furoxan derivatives with N‐nitroso groups were synthesized in good yields by TBN initiated radical sp3 C−N bond cleavage of 1‐nitromethyl‐N‐aryltetrahydroisoquinolines. This reaction grafts the biologically important furoxan skeleton and N‐nitroso group into on molecule, greatly improving the molecular complexity in one step transformation. The mechanistic study shows that this reaction is mediated by the in situ generated α‐carbonyl nitrile oxide, which is afforded by TBN promoted C−N bond cleavage.
the aerobic CDC reactions. The results indicated that NH3·H2O coprecipitated CuMgAl LDH (N-CuMgAl-LDH) was able to efficiently accelerate the CDC reactions between the α-Csp3–H of N-aryltetrahydroisoquinolines and nucleophiles. A wide scope of N-aryltetrahydroisoquinoline analogues and nucleophiles with different CH bonds (Csp3–H, Csp2–H and Csp–H) could be tolerated by the N-CuMgAl-LDH system. Compared
genus indicated that naphthodianthrones, namely the compounds of the hypericin family, are crucial for the photocatalytic activity of the dried plant material. In situUV-visspectroelectrochemical methods provide insights into the mechanism of the photoreduction reaction where the radical dianion of hypericin (Hyp˙2−) is the catalytically active species. Our strategy provides a sustainable, efficient
Tetrathienoanthracene-functionalized conjugated microporous polymers as an efficient, metal-free visible-light solid organocatalyst for heterogeneous photocatalysis
作者:Chang-An Wang、Jian-Ping Zhang、Kun Nie、Yan-Wei Li、Qun Li、Guo-Zheng Jiao、Jian-Guo Chang、Yin-Feng Han
DOI:10.1039/d1cy00488c
日期:——
and molecularly tunable optoelectronic properties, conjugatedmicroporouspolymers (CMPs) have been receiving increasing attention and research interest as promising alternatives to traditional inorganic semiconductors for heterogeneous photocatalysis. Herein, we report the concise synthesis of tetrathienoanthracene-based conjugatedmicroporouspolymers (TTA-CMP) via a bottom-up strategy. TTA-CMP was
AIE-active tetraphenylethene functionalized metal–organic framework for selective detection of nitroaromatic explosives and organic photocatalysis
作者:Qiu-Yan Li、Zheng Ma、Wen-Qiang Zhang、Jia-Long Xu、Wei Wei、Han Lu、Xinsheng Zhao、Xiao-Jun Wang
DOI:10.1039/c6cc04997d
日期:——
A luminescent MOF containing an AIE-active TPE moiety works as a selective sensor for detecting nitroaromatic explosives, as well as an efficient heterogeneous photocatalyst for CDC reactions mediated by visible light.
Light-Mediated Heterogeneous Cross Dehydrogenative Coupling Reactions: Metal Oxides as Efficient, Recyclable, Photoredox Catalysts in CC Bond-Forming Reactions
作者:Magnus Rueping、Jochen Zoller、David C. Fabry、Konstantin Poscharny、René M. Koenigs、Thomas E. Weirich、Joachim Mayer
DOI:10.1002/chem.201103242
日期:2012.3.19
Let there be light: A heterogeneous photocatalytic system based on easily recyclable TiO2 or ZnO allows cross dehydrogenative coupling reactions of tertiary amines. The newly developed protocols have successfully been applied to various CC and CP bond‐formingreactions to provide nitro amines as well as amino ketones, nitriles and phosphonates.