| Abstrakt: |
1.The condensation of 2-thienylacetic acid and its diethylamide with triacetoneamine or N-hydroxytriacetoneamine hydrochloride in 72–82% H2SO4 proceeds with the formation of 5-[4-(2,2,6,6-tetramethy1-1,2,5,6-tetrahydropyridyl)]-2-thienylacetic acid, its amide, or its N-hydroxy-derivative, respectively.2.A method has been developed for the preparation of spin-labeled 2-thienylacetic acid by oxidation of 5-[4-(2,2,6,6-tetramethyl-1,2,5,6-tetrahydro-1-hydroxypyridyl)]-2-thienylacetic acid. |
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