The Preparation of 2, 5-Thiophenedicarboxaldehyde
1964; Oxford University Press; Volume: 37; Issue: 8 Linguagem: Inglês
10.1246/bcsj.37.1197
ISSN1348-0634
Autores Tópico(s)Synthesis and Reactivity of Sulfur-Containing Compounds
ResumoAbstract The application of Kröhnke’s method to 2,5-bis(chloromethyl)thiophene has afforded 2,5-thiophenedicarboxaldehyde, from which some condensation products with amines and active methylene compounds have then been derived. 2-Methyl-5-acetyl-3-thiophenecarboxaldehyde and 2-methyl-3,5-thiophenecarboxaldehyde have also been prepared, from 2-methyl-3-chloromethyl-5-acetylthiophene and 2-methyl-3-chloromethyl-5-thiophenecarboxaldehyde respectively, by the Sommelet procedure.
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