The light “on-off” stepwise one-pot method for 3,4-diaryl coumarins with potential AIE properties
An efficient one-pot method involving visible-light-induced cyclization and Pd-catalyzed Suzuki cross-coupling processes to construct 3,4-diaryl coumarins is developed. Under the light on-off optimized conditions, a series of alkynoates and aryl boronic a
Photoinduced cyclization of alkynoates to coumarins with N-Iodosuccinimide as a free-radical initiator under ambient and metal-free conditions
An efficient photoinduced strategy for the preparation of coumarins was developed. In the presence of N-iodosuccinimide (NIS) as a free-radical initiator and under LED (380–385 nm) irradiation and metal-free conditions, the reaction of alkynoates underwen
Wang, Zhihui,Li, Xuezhi,Wang, Lei,Li, Pinhua
p. 1044 - 1051
(2019/01/25)
Regioselective Suzuki-Miyaura cross-coupling reactions of the bis(triflate) of 4,7-dihydroxycoumarin
Arylated coumarins were prepared by site-selective Suzuki-Miyaura cross-coupling reaction of the bis(triflate) of 4,7-dihydroxycoumarin. The reactions proceeded by initial attack to the sterically more hindered position, due to electronic reasons.
Khaddour, Zien,Akrawi, Omer A.,Suleiman, Ali S.,Patonay, Tamás,Villinger, Alexander,Langer, Peter
p. 4421 - 4423
(2014/08/05)
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