A new class of N‐azole substituted thiomorpholinederivatives were prepared and their antioxidant and cytotoxic activities were studied. The methyl substituted oxazolyl thiomorpholine dioxide 9b exhibited radical scavenging activity greater than the standard ascorbic acid. On the other hand, the thiazolyl thiomorpholine 10c having a chloro substituent on the aromatic ring was identified as a remarkable
Synthesis of sulphonyldiacetyl chloride, SO<sub>2</sub>(CH<sub>2</sub>·COCL)<sub>2</sub>
作者:B. M. Culbertson、R. Murphy
DOI:10.1039/j39660000968
日期:——
Sulphonydiacetyl chloride (m.p. 69–70°) has been prepared in ca. 90% yield by chlorination of sulphonyldiacetic acid with phosphorus pentachloride in ethyl acetate at 70°. The preparation of the corresponding NNN′N′-tetraethyl and -tetraisopropyl amides has demonstrated the use of the chloride for preparing new derivatives of the parent acid.