41255-32-7Relevant academic research and scientific papers
Rh-Catalyzed aldehydic C-H alkynylation and annulation
Ramakrishna, Boddu S.,Rao, Maddali L. N.
, p. 1402 - 1411 (2020/03/03)
Novel Rh-catalyzed aldehydic C-H bond alkynylation and annulation for the in situ synthesis of chromones and aurones are described. It involves the sequential aldehyde C-H bond alkynylation of salicylaldehyde with in situ generated 1-bromoalkyne from 1,1-
Synthetic method of flavonoid compound
-
Paragraph 0065-0069, (2019/10/01)
The invention discloses a synthetic method of a flavonoid compound. The synthetic method comprises the following step: in the oxygen atmosphere, a compound as shown in the formula A is subjected to areaction in a reaction system containing a catalyst Co-N
Novel and Efficient Access to Flavones under Mild Conditions: Aqueous HI-Mediated Cascade Cyclization/Oxidative Radical Reaction of 2-Propynolphenols
Song, Xian-Rong,Li, Ren,Yang, Tao,Chen, Xi,Ding, Haixin,Xiao, Qiang,Liang, Yong-Min
supporting information, p. 5548 - 5552 (2018/10/24)
Herein we disclose a metal-free and efficient method for the direct conversion of 2-propynolphenols to biologically important flavones using aqueous HI as the promoter. This transformation was proved via 4-iodo-2H-chromenes intermediate, which was simultaneously conversed to corresponding flavones by a Csp2?I bond cleavage and a C–O bond formation under air.
One-pot Synthesis of Aurones through Oxidation-cyclization Tandem Reaction Catalyzed by Copper Nanoparticles Catalyst
Yu, Min,Liu, Guangxiang,Han, Chengyan,Zhu, Li,Yao, Xiaoquan
, p. 70 - 77 (2018/03/05)
Aurones were synthesized through an oxidation-cyclization tandem reaction of 2-(1- hydroxyprop-2-ynyl)phenols catalyzed by copper nanoparticles (Cu NPs) with bipyridine as the ligand. In the reaction, oxygen worked as a green and mild oxidant to give the best results. Cu NPs were dually activated by bipyridine ligand and water, and showed highly efficient catalytic activities to the oxygen oxidation and the cylization to give aurones and flavonoids.
