Desulfurization of thioureas, benzimidazoline-2-thiones and 1,3-dihydro-1,3-diaryl-2-thioxopyrimidine-4,6 (2 ,5 )-diones with nickel boride at ambient temperature
摘要：
Nickel boride is reported to bring about desulfurization and reductive cleavage ofN,N′-diarylthioureas to give corresponding anilines andN-methylanilines whileN,N′-dialkylthioureas have been observed to undergo desulfurization to give formamidines; benzimidazoline-2-thiones are reported to undergo desulfurization to benzimidazoles and 1,3-dihydro-1,3-diaryl-2-thioxopyrimidine-4,6(2H,5H)-diones have been observed to yield corresponding hexahydropyrimidine-4,6-diones in high yields in dry methanol at ambient temperature.
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关键词：
desulfuration, desulfonation reduction, hydrogenation pyrimidine derivatives imidazole derivatives amines (acyclic compounds) amines (benzene compounds)
DOI：
10.1039/b206398k
被引量：
年份：
2002
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