In the course of our studies directed towards the synthesis of pederawide &gradation product of pederin (g)4, we had occasion to explore the chemistry
Chemistry of conjugate anions and enols. VI. the reaction of dihalocarbene with enolate anions
β Scribed by T.D.J. D'Silva; Howard J. Ringold
- Publisher
- Elsevier Science
- Year
- 1965
- Tongue
- French
- Weight
- 252 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
## Abstract Nitronate anions derived from primary and secondary nitroalβkanes undergo crossβcoupling reactions with diethyl alkylmalonate anions in alcohol/DMF solution when treated with silver nitrate. A catalytic amount of chloride ions is necessary to promote selective reaction.
For the anionic polymerization of dimethylketene the growing end was shown to be an enolate anion and to have ambident nature (1). Hence, it is interesting to study.the acylating reaction of enolate anion with dimethylketene. We studied the acylation of enolate anions derived from isobutyrophenone
3-and 4-Hydroxycoumarin (& and 2) as well as 2-hydroxy-2,5-cyclohexadien-l-ones a-6 were reacted with K02/18-crown-6 in benzene. Initial deprotonation of the enol hydrogen was followed by nucleophilic attack by 0 sulting anion (for 4 and ,&-q). A convenieng CONDITION\* YIELD (2) && KO (5 hr) KOS (16