17684-15-0Relevant academic research and scientific papers
Synthesis of coumarins via PIDA/I2-mediated oxidative cyclization of substituted phenylacrylic acids
Li, Jinming,Chen, Huiyu,Zhang-Negrerie, Daisy,Du, Yunfei,Zhao, Kang
, p. 4311 - 4320 (2013/04/24)
A variety of functionalized coumarins were synthesized from substituted phenylacrylic acids via PIDA/I2-mediated and irradiation-promoted oxidative carbon-oxygen bond formation. Our studies show that the oxygen in the pendant carboxylic acid group cyclizes favorably to the aryl ring that is cis to it. The main advantages of this method include good functional group tolerance and the transition-metal-free characteristic. The Royal Society of Chemistry 2013.
Rhodium(I)-catalyzed enantioselective hydrogenation of substituted acrylic acids with sterically similar β,β-diaryls
Li, Yang,Dong, Kaiwu,Wang, Zheng,Ding, Kuiling
, p. 6748 - 6752 (2013/07/26)
Distinct differentiation: β,β-Disubstituted acrylic acids with sterically similar geminal diaryl groups can be hydrogenated with excellent enantioselectivities in the presence of a RhI complex formed in situ with two-component ligands, a chiral secondary phosphine oxide (SPO) and an achiral phosphine (Ph3P). The sense of asymmetric induction was found to be controlled by the substrate configuration, thus allowing access to both enantiomers of the product with the same catalyst. Copyright
Palladium-catalyzed intramolecular amidation of C(sp2)-H bonds: Synthesis of 4-aryl-2-quinolinones
Inamoto, Kiyofumi,Saito, Tadataka,Hiroya, Kou,Doi, Takayuki
supporting information; experimental part, p. 3900 - 3903 (2010/07/05)
Figure presented A catalytic synthetic approach for the synthesis of 2-quinolinone compounds through a Pd-catalyzed C(sp2)-H functionalization/intramolecular amidation sequence is described. The cyclization process efficiently proceeds in the p
