Derivatives of 5-(Dimethylamino)-4-tosyl-1,3-oxazole-2-carbaldehyde and Its Analogs
作者:R. N. Vyzhdak、A. A. Danielova、V. V. Kiselev、B. S. Drach
DOI:10.1007/s11176-005-0350-7
日期:2005.6
oxazole series, whose facile acid hydrolysis provided 5-(dimethylamino)-4-tosyl-1,3-oxazol-2-carbaldehyde and its analogs having the piperidino and morpholino group in the 5 position of the oxazole ring. The resulting aldehydes and their aminals were condensed with phenylhydrazine, thiosemicarbazide, N -alkylrhodanines, and 1,3-dimethylbarbituric acid to obtain 2,5-disubstituted derivatives of 4-tosyl-1
用过量的二甲胺,哌啶或吗啉处理 N- (2,2,2-三氯-1-甲苯磺酰基乙基)二氯乙酰胺,得到恶唑系列的取代缩醛,其容易的酸水解提供了5-(二甲氨基)-4-甲苯磺酰基-1在恶唑环的5位具有哌啶子基和吗啉代基团的1,3-恶唑-2-甲醛及其类似物。将得到的醛及其缩醛与苯肼,硫代氨基脲, N- 烷基罗丹宁和1,3-二甲基巴比妥酸缩合,得到4-甲苯基-1,3-恶唑的2,5-二取代衍生物。