The acid-mediated cyclization of homoterpenic acids such as (I) and ( IV) provides mixtures of cis-and trans-Ξ³-lactones in ratios depending on the acid employed. -(IMAMURA,
Chlorosulfonic Acid Mediated Cyclization of Homoterpenic Acid
β Scribed by Imamura, Paulo M.; Santiago, Gilvandete M. P.
- Book ID
- 120464820
- Publisher
- Taylor and Francis Group
- Year
- 1997
- Tongue
- English
- Weight
- 274 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0039-7911
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π SIMILAR VOLUMES
Among several sulfonic acids studied (MeSO 3 H, p-TsOH, H 2 SO 4 , ClSO 3 H, FSO 3 H), the scarcely used chlorosulfonic acid showed to be an efficient agent for electrophilic olefin cyclizations with internal nucleophilic termination, in a similar manner that is well-established with fluorosulfonic
Since its discovery in 1854, chlorosulfonic acid has demonstrated that it is a truly versatile reagent. It is widely used as a sulfonating and chlorosulfonating agent, particularly of organic compounds, and it provides useful synthetic intermediates for many branches of industry. This book provides