Direct Synthesis of G-2N
β Scribed by Kraus, George A.; Zhao, Guohua
- Book ID
- 127285602
- Publisher
- American Chemical Society
- Year
- 1996
- Tongue
- English
- Weight
- 102 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
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## 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, please click on HTML or PDF.
Trioxo ester 15 was prepared by attachment of two vicinal C-16 regioselectively in one operation. Deprotection of 16 afforded the antibiotic G-2A (1) and decarboxylation of 1 4 and C-6 ketide side chains on the anthraquinone core (6b). Mild base treatment of 15 initiated successive aldol lead to G-2
The A' 'Z: state of N2 was detected for the first time in a direct measurement, using a high-resolution laser absorption technique within the C" 'lI. +A' 'Z: (u' =O+Y" =O) band. Evidence is given that the quintet state was created by means of an energy pooling reaction from the A '2: state in a pure