The rates of acid-catalyzed degradation of a number of acetyl-substituted sucrose derivatives in dimethyl sulfoxide have been determined. The results indicate that the rate is markedly diminished by acetylation at O-l or -3 of the D-fructosyl group. This increased stability of the substituted sucros
Thermolysis of dimethyl sulfoxide
β Scribed by F. C. Thyrion; G. Debecker
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 365 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
The thermal decomposition of dimethyl sulfoxide at small extent of reaction has been studied at temperatures of 297β350Β°C and pressures of 10β400 Torr. The major products CH~4~, C~2~H~4~, and SO~2~ were shown to follow firstβorder kinetics. The activation energies for production of each was about 48 kcalΒ·mole^β1^. A chain mechanism has been postulated in the light of the results of isotopic substitution experiments.
π SIMILAR VOLUMES
Chlorinated cis-2,4-pentadienoyl chlorides (1) with R = H or CsHs and R' = CI react in the same way but more slowly (reaction time: 4 days). Ci2H2s C14Hz9 Ci6H13 Ci8H37 Benzyl Cyclohexyl Phenyl Monothioacetic acid is also desulfurated by dimethyl sulfoxide; the yield is 70% after one week at 2OoC.