36684-52-3Relevant academic research and scientific papers
[N,P]-pyrrole PdCl2 complexes catalyzed the formation of dibenzo-α-pyrone and lactam analogues
Suárez-Meneses,Oukhrib,Gouygou,Urrutigo?ty,Daran,Cordero-Vargas,Ortega-Alfaro,López-Cortés
supporting information, p. 9621 - 9630 (2016/07/06)
We herein report the synthesis and catalytic application of a new family of [N,P] ligands based on the pyrrole ring with alpha-phosphine or phosphole units. Their palladium complexes (3a-d) were obtained in very good yields and their catalytic properties were evaluated in the direct intramolecular arylation to obtain both benzopyranones and phenanthridinones. The air stable complex 3a exhibited the best catalytic performance of this series of complexes, using 1 mol% of catalyst in combination with microwaves to promote this reaction.
Direct arylation under catalysis of an oxime-derived palladacycle: Search for a phosphane-free method
Zhang, Guofu,Zhao, Xiaobao,Yan, Yunbing,Ding, Chengrong
supporting information; experimental part, p. 669 - 672 (2012/03/27)
A phosphane-free method for the direct arylation of benzothiazole by employing oxime-derived palladacycle 1 as a catalyst was developed. The new catalyst system can be used for 2-arylations by using aryl bromides and iodides. In addition, this method is especially suitable for the intramolecular direct coupling of bromo-and iodoamides, as well aschloroamides, to achieve a rapid synthesis of benzo[c]phenanthridine alkaloids. Direct arylation reactions under catalysis of an oxime-derived palladacycle were investigated. This phosphane-free method is applicable for the 2-arylation of benzothiazole and is especially suitable for the intramolecular direct coupling of bromo-and iodoamides, as well as chloroamides, to achieve rapid synthesis of benzo[c]phenanthridine alkaloids. Copyright
