## Abstract The reactions of the alkenoic acid derivatives 1aβ19a with sulfur trioxide were studied in the temperature range β60 to 25Β°C using dichloromethane as solvent and 1.5 equiv. of dioxane as reactivity moderator. The alkenoic acids 13a and 14a, having a β(CH~2~)~4~β and β(CH~2~)~7~β linkage
β¦ LIBER β¦
Sulfonation of chloro- and dichloroanisoles with concentrated aqueous sulfuric acid and sulfur trioxide. Demethylation of chloroanisolesulfonic acids in sulfuric acid systems
β Scribed by Peter de Wit; Hans Cerfontain
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 586 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0165-0513
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