117145-55-8Relevant articles and documents
Palladium-Catalyzed Olefination of 4H-Benzo[d][1,3]oxazin-4-one Derivatives with Activated Alkenes via Preferential Cyclic Imine-N-Directed Aryl C-H Activation
Panja, Subir,Maity, Srabani,Majhi, Biju,Ranu, Brindaban C.
, p. 5777 - 5786 (2019/08/30)
A palladium-catalyzed chelation-assisted selective ortho C-H bond olefination of biologically active 4H-benzo[d][1,3] oxazin-4-one derivatives with activated olefins has been achieved. The products are obtained in good yields with high regio- and stereose
Silver and Palladium Cocatalyzed Carbonylative Activation of Benzotriazoles to Benzoxazinones under Neutral Conditions
Yin, Zhiping,Wang, Zechao,Wu, Xiao-Feng
supporting information, p. 6232 - 6235 (2017/11/24)
A novel and efficient method for the carbonylative activation of benzotriazoles to benzoxazinones has been developed. By using a silver and palladium bimetallic catalyst system, a broad range of benzotriazoles were transformed into the corresponding benzoxazinones in moderate to good yields with excellent functional group tolerance. Notably, this procedure proceeds under neutral conditions.
Selective Oxidative Decarbonylative Cleavage of Unstrained C(sp3)-C(sp2) Bond: Synthesis of Substituted Benzoxazinones
Verma, Ajay,Kumar, Sangit
supporting information, p. 4388 - 4391 (2016/10/11)
A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp3)-C(sp2) bond employing iodine, sodium bicarbonate, and tbutyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and extrusion of CO gas as the key steps. The extrusion of CO has also been established using PMA-PdCl2.