## Abstract The reactions between isatin (8a) and __N__‐acetylisatin (8b) with pyridine‐2,3‐diamine (9a), pyridine‐3,4‐diamine (9b) and pyrimidine‐4,5‐diamine (21) were studied. 10__H__‐Pyrido[3′,2′:5,6]pyrazino[2,3‐__b__]indole (5a), 6__H__‐pyrido[2′,3′:5,6]‐pyrazino[2,3‐__b__]indole (5b), 6__H__‐
ChemInform Abstract: Synthesis of Pyridopyrazino(2,3-b)indoles and 10H-Indolo(3,2-g) pteridins.
✍ Scribed by J. BERGMAN; C. DAMBERG; H. VALLBERG
- Book ID
- 112032127
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 30 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0931-7597
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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 “Full Text” option. The original article is trackable v
Synthesis of 5H-Pyrazino(2,3-b)indoles from Indole-2,3-dione Derivatives. -The reaction of the N-acetylisatins (I) with ethylenediamine yields the products (III). After dehydrogenation these compounds and their analogues (IV) after deacetylation are cyclized by heating to the title products (VI). N