Murti, V. V. S. ; Seshadri, T. R. ; Sundaresan, V. ; Venkataramani, B. (1957) Synthetic experiments in the benzopyrone series Part LXVI. Relative stability of isomeric 6-methyl and 8-methyl-trihydroxy flavones Proceedings of the Indian Academy of Sciences, Section A, 46 (4). pp. 265-271. ISSN 0370-0089
![]()
|
PDF
- Publisher Version
630kB |
Official URL: http://www.ias.ac.in/j_archive/proca/46/4/265-271/...
Related URL: http://dx.doi.org/10.1007/BF03045976
Abstract
8-Methyl baicalein has been made (1) from 8-methyl chrysin by the preparation of the 6-aldehyde and subsequent Dakin's reaction and (2) from C-methyl phloracetophenone dimethyl ether by steps involving persulphate oxidation and flavone ring closure. The isomeric 6-methyl compound has been obtained by the nuclear methylation of norwogonin and demethylation with aluminium chloride. The methyl ethers of the former undergo only demethylation when boiled with hydriodic acid whereas those of the latter undergo isomeric change besides demethylation.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to Indian Academy of Sciences. |
ID Code: | 68349 |
Deposited On: | 07 Nov 2011 04:19 |
Last Modified: | 18 May 2016 15:10 |
Repository Staff Only: item control page