97828-25-6Relevant academic research and scientific papers
Facile synthesis of norwogonin, isoscutellarein, and herbacetin
Yuan, Hu,Ye, Ji,Chen, Hao,Zhao, Zeng,Luo, Xukai,Zhang, Weidong,Sun, Qingyan
, p. 3389 - 3391 (2016)
An expeditious synthesis of norwogonin, isoscutellarein, and herbacetin, has been accomplished by a strategy featuring a borylation of sterically hindered aryl iodide and a one-pot oxidation to generate the C-3 and C-8 OH groups. The total synthesis gives excellent yields and conventional flash column chromatography is not needed for purification.
Preparation method and intermediates of flavonoids
-
Paragraph 0213-0217; 0219-0220, (2017/11/16)
The invention discloses a preparation method and intermediates of flavonoids. The preparation method comprises the following steps: in a solvent, in the presence of an acid, performing a ring-opening reaction and an elimination reaction on a compound 8 to obtain a compound 9. Raw materials used in the method are easy to acquire, and the method has high yields and simple post processes, and does not need column chromatography.
Preparation method of flavonoids
-
Paragraph 0213-0217; 0219-0220, (2017/11/16)
The invention discloses a preparation method of flavonoids. The method comprises the following step: in a solvent, in the presence of iodine and a silver salt or in the presence of iodine and a copper salt, performing an iodination reaction on a compound 1 to obtain a compound 2. Raw materials used in the method are easy to acquire, and the method has high yields and simple post processes, and does not need column chromatography.
