1000697-64-2Relevant academic research and scientific papers
Iodonium Ylides as Carbene Precursors in Rh(III)-Catalyzed C-H Activation
Jiang, Yuqin,Li, Pengfei,Li, Xingwei,Liu, Bingxian,Zhao, Jie
supporting information, p. 7475 - 7479 (2020/10/12)
The rhodium(III)-catalyzed coupling of C-H substrates with iodonium ylides has been realized for the efficient synthesis of diverse cyclic skeletons, where the iodonium ylides have been identified as efficient and outstanding carbene precursors. The reaction systems are applicable to both sp2 and sp3 C-H substrates under mild and redox-neutral conditions. The catalyst loading can be as low as 0.5 mol % in a gram-scale reaction. Representative products exhibit cytotoxicity toward human cancer cells at nanomolar levels.
Method for preparing cyclohexanone/chromenopyrone compounds and application of cyclohexanone/chromenopyrone compounds
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Paragraph 0028-0035; 0062-0064, (2020/12/09)
The invention provides a method for preparing cyclohexanone/chromenopyrone compounds and application of the cyclohexanone/chromenopyrone compounds, and belongs to the field of organic chemistry. In the presence of a rhodium catalyst, alpha, beta-unsaturated carboxylic acid reacts with 1,3-cyclohexanedione-2-phenyl iodide or 4-hydroxychromene-2-one-2-phenyl iodide, and the cyclohexanone/chromenopyrone compounds are obtained with high selectivity. The method has the advantages of mild reaction conditions, short reaction steps, simple post-treatment and high stereoselectivity and regioselectivityof the reaction product. Meanwhile, the cyclohexanone pyrone compound shows good activity in inhibition of a plurality of cancer cells.
An efficient synthesis of 2-hydroxy-7,8-dihydroquinolin-5(6H)-ones and 7,8-dihydroquinoline-2,5(1H,6H)-diones from Morita-Baylis-Hillman adduct acetates
Zhong, Weihui,Lin, Fuliang,Chen, Ren'er,Su, Weike
experimental part, p. 2561 - 2568 (2009/04/11)
A series of 2-hydroxy-7,8-dihydroquinolin-5(6H)-ones and 7,8-dihydroquinoline-2,5(1H,6H)-diones have been synthesized in good to excellent yields from Morita-Baylis-Hillman adduct acetates, cyclohexane-1,3-diones and ammonium acetate or primary amines in one pot under solvent-free conditions. Georg Thieme Verlag Stuttgart.
An efficient synthesis of 3-arylmethyl-7,8-dihydro-6H-chromene-2,5-diones from Baylis-Hillman adduct acetates under solvent-free conditions
Zhong, Weihui,Zhao, Yongzhi,Su, Weike
, p. 5491 - 5496 (2008/12/20)
A simple, efficient synthesis of 3-arylmethyl-7,8-dihydro-6H-chromene-2,5-dione 4 from Baylis-Hillman adduct acetates derived from aromatic aldehydes and cyclohexane-1,3-diones under solvent-free conditions is described. Interestingly, when Baylis-Hillman adducts derived from aliphatic aldehydes were tested under the similar conditions, the unexpected stereoisomers 5 and 6 were obtained in moderate yields. A plausible mechanism for the formation of 4-6 is proposed.
