Reaction of 2,2,6-Trimethyl-4H-1,3-dioxin-4-one with Imines: An Easy Route to Enamides. -Thermolysis of the dioxin (I) generates an acylketene which is readily trapped by imines to give the N-alkenyl acetoacetamides (III). They are useful intermediates in oxidative radical cyclizations leading to .
ChemInform Abstract: Reactions of 6-Aminopyrimidin-4(3H)-ones with Electron-Deficient Alkenyl Derivatives. Easy Preparation of Heterocyclic Analogues of Sangivamicine.
β Scribed by J. COBO; A. SANCHEZ; M. NOGUERAS
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 34 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Reactions of 6-Aminopyrimidin-4(3H)-ones with Electron-Deficient Alkenyl Derivatives. Easy Preparation of Heterocyclic Analogues of Sangivamicine.
-6-Aminopyrimidines like (I) and (VII) are found to react with maleimide to afford Michael adducts. In one case small amounts of a pyrrolopyridine, arising from Diels-Alder reaction, are also isolated. The reaction with more reactive maleic anhydride leads to pyrrolopyrimidines (analogues of sangivamicine) formed by cyclization of the Michael adducts.
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v