Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = 4H-1-benzopyan-4-one

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
7 pages, 162 KiB  
Article
A Novel Approach to the Synthesis of 6-Amino-7-hydroxy-flavone
by Lijun Tang, Shufen Zhang, Jinzong Yang, Wentao Gao, Jian Cui and Tianyu Zhuang
Molecules 2004, 9(10), 842-848; https://doi.org/10.3390/91000842 - 30 Sep 2004
Cited by 26 | Viewed by 10326
Abstract
A novel approach to the synthesis of 6-amino-7-hydroxyflavone (1) is described. Reaction in acetone of 2′,4′-dihydroxy-5′-nitroacetophenone and benzoyl chloride in the presence of potassium carbonate affords 3-benzoyl-7-hydroxy-6-nitroflavone, which is cleaved in 5% ethanolic potassium hydroxide to give 1-(2,4-dihydroxy-5-nitrophenyl)-3- phenyl-1,3-propanedione. The 1,3-diketone thus formed [...] Read more.
A novel approach to the synthesis of 6-amino-7-hydroxyflavone (1) is described. Reaction in acetone of 2′,4′-dihydroxy-5′-nitroacetophenone and benzoyl chloride in the presence of potassium carbonate affords 3-benzoyl-7-hydroxy-6-nitroflavone, which is cleaved in 5% ethanolic potassium hydroxide to give 1-(2,4-dihydroxy-5-nitrophenyl)-3- phenyl-1,3-propanedione. The 1,3-diketone thus formed is then transformed into 7-hydroxy- 6-nitroflavone, followed by reduction to afford the title compound. Full article
Show Figures

Figure 1

Back to TopTop