Synthesis and Reactions of Some New Thiobarbituric Acid Derivatives
β Scribed by Bondock, Samir; Tarhoni, Abd El-Gaber; Fadda, Ahmed A.
- Book ID
- 126902521
- Publisher
- Taylor and Francis Group
- Year
- 2007
- Tongue
- English
- Weight
- 431 KB
- Volume
- 182
- Category
- Article
- ISSN
- 1042-6507
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π SIMILAR VOLUMES
Condensation of different cyclic ketones with visnaginone la and khellinone lb afforded spirofurochromanone derivatives 2a-f. Compounds 2a and 2b were readily demethylated to give the compounds 3a and 3b. Nitration of 2b and 2e gave the nitrofurochromonone and quinone derivatives 4 and 5 respectivel
## Abstract magnified image Reaction of __visnaginone__ **1** with allyl bromide gave __O__βallyl __visnaginone__ **2** which underwent Claisen rearrangement to yield 7βallylbenzofuran derivative **3**. Reaction of **3** with different aromatic aldehydes gave the corresponding 5βcinnamoylbenzofura