1323921-60-3Relevant academic research and scientific papers
Building a Pyrazole–Benzothiadiazole–Pyrazole Photosensitizer into Metal–Organic Frameworks for Photocatalytic Aerobic Oxidation
Jin, Ji-Kang,Wu, Kun,Liu, Xin-Yi,Huang, Guo-Quan,Huang, Yong-Liang,Luo, Dong,Xie, Mo,Zhao, Yifang,Lu, Weigang,Zhou, Xiao-Ping,He, Jian,Li, Dan
supporting information, p. 21340 - 21349 (2021/12/17)
Charge separation plays a crucial role in regulating photochemical properties and therefore warrants consideration in designing photocatalysts. Metal–organic frameworks (MOFs) are emerging as promising candidates for heterogeneous photocatalysis due to their structural designability and tunability of photon absorption. Herein, we report the design of a pyrazole–benzothiadiazole–pyrazole organic molecule bearing a donor–acceptor–donor conjugated π-system for fast charge separation. Further attempts to integrate such a photosensitizer into MOFs afford a more effective heterogeneous photocatalyst (JNU-204). Under visible-light irradiation, three aerobic oxidation reactions involving different oxygenation pathways were achieved on JNU-204. Recycling experiments were conducted to demonstrate the stability and reusability of JNU-204 as a robust heterogeneous photocatalyst. Furthermore, we illustrate its applications in the facile synthesis of pyrrolo[2,1-a]isoquinoline-containing heterocycles, core skeletons of a family of marine natural products. JNU-204 is an exemplary MOF platform with good photon absorption, suitable band gap, fast charge separation, and extraordinary chemical stability for proceeding with aerobic oxidation reactions under visible-light irradiation.
Synthesis of 3,4-dihydropyrrolo[2,1-a]isoquinolines based on [3+2] cycloaddition initiated by Rh2(cap)4-catalyzed oxidation
Wang, Hong-Tu,Lu, Chong-Dao
, p. 3015 - 3018 (2013/07/11)
Azomethine ylides have been efficiently generated via Rh 2(cap)4-catalyzed oxidation of tetrahydroisoquinoline derivatives in the presence of base. The ylides are trapped in situ via [3+2] cycloaddition with dipolarophiles and subjec
Visible-light-induced oxidation/[3+2] cycloaddition/oxidative aromatization sequence: A photocatalytic strategy to construct pyrrolo[2,1-a]isoquinolines
Zou, You-Quan,Lu, Liang-Qiu,Fu, Liang,Chang, Ning-Jie,Rong, Jian,Chen, Jia-Rong,Xiao, Wen-Jing
supporting information; experimental part, p. 7171 - 7175 (2011/09/16)
A ray of sunshine: The title reaction sequence using ethyl 2-(3,4-dihydroisoquinolin-2(1H)-yl)acetates with a series of electron-deficient alkenes and alkynes provides rapid and efficient access to pyrrolo[2,1-a] isoquinolines (see scheme; bpy=2,2′-bipyri
