15185-05-4Relevant articles and documents
Rh(I)-catalyzed cross-coupling reactions of alkenyl tosylates with potassium aryltrifluoroborates
Wu, Jie,Zhang, Liang,Luo, Yong
, p. 6747 - 6750 (2006)
RhCl(PPh3)3/DPPF was successfully employed as an efficient catalyst in the Suzuki-Miyaura cross-coupling reactions of potassium aryltrifluoroborates with alkenyl tosylates, affording the corresponding products in good to excellent yi
Magnesium bis(trifluoromethane)sulfonimide: An efficient catalyst for the synthesis of coumarins under solvent-free conditions
Wang, Hongshe
, p. 411 - 414 (2013)
Magnesium bis(trifluoromethane)sulfonimide [Mg(NTf2) 2] is an efficient catalyst for the synthesis of coumarins via the Pechmann condensation reaction of phenols and β-ketoesters under solvent-free conditions.
Chlorinative Cyclization of Aryl Alkynoates Using NCS and 9-Mesityl-10-methylacridinium Perchlorate Photocatalyst
Pramanik, Milan,Mathuri, Ashis,Sau, Sudip,Das, Monojit,Mal, Prasenjit
, p. 8088 - 8092 (2021/10/12)
In a chlorinative cyclization, Mes-Acr-MeClO4 acted as a visible-light photocatalyst to obtain 3-chlorocoumarins from aryl alkynoates and N-chlorosuccinimide (NCS). The radical initiated reaction proceeded in a cascading manner via Cl- addition to alkynoa
Fe-Catalyzed Intramolecular Cross-Dehydrogenative Arylation (CDA), Efficient Synthesis of 1-Arylnaphthalenes and 4-Arylcoumarins
Diao, Haiyan,Wang, Changcheng,Zhang, Zhen,Shi, Zhangjie,Liu, Feng
, (2021/06/27)
Direct cross-dehydrogenative coupling of different inert C?H bonds is the most straightforward and environmentally benign method to construct C?C bonds. In this paper, we developed an iron-catalyzed intramolecular cross-dehydrogenative arylation (CDA) between benzylic C(sp3)H bond and aromatic C(sp2)H bond. From the readily available linear substrates, 1-arylnaphthalenes and 4-arylcoumarins can be quickly constructed with moderate to good yield (18 examples, up to 73 % yield) in one step. Both symmetrical and unsymmetrical substrates with different functional groups could tolerate this system well to form the anticipated products. A radical initiated dehydrogenative cyclization-dehydrogenation tandem process was proposed.