Synthesis of Phenistidine and Derivatives 1
β Scribed by Stanfield, M. K.; Woolley, D. W.
- Book ID
- 126179772
- Publisher
- American Chemical Society
- Year
- 1965
- Tongue
- English
- Weight
- 423 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Esculetin (1) and the novel compounds 5βchloroesculetin (5) and 5βbromoesculetin (6) were obtained from a lightβinduced cyclization of __trans__βcaffeic acid (3) catalyzed by [FeNa(edta)] and/or H~2~SO~4~, HCI, or HBr (__Scheme 1__). The experimental conditions for __trans__β__cis__βiso
The title compounds derived from 1, 1-dibromocyclopropanes are transformed into (1) cyclopropyltrimethylsilanes via 1-trimethylsilylcyclopropyllithium species, (2) 1-alkylidenecyclopropanes by the Peterson-olef=tion, and (3) 1-acetyl(or 1-allyl)cyclopropylsilanes with dibutylcopperlithium and acetyl