Diazoaldehyde Chemistry. Part 1. Transdiazotization of Acylacetaldehydes in Neutral-to-Acidic Medium. A Direct Approach to the Synthesis of α-Diazo-β-oxoaldehydes
作者:Özkan Sezer、Olcay Anaç
DOI:10.1002/hlca.19940770819
日期:1994.12.14
non-deformylating transdiazotization of acylacetaldehydes was achieved: the reactions of 2-azido-l-ethylpyridinium tetrafluoroborate (4) with acylacetaldehydes 3 proceeded partially without deformylation to yield 16 new α-diazo-β-oxoaldehydes 1 along with diazomethyl ketones 2, especially in the presence of NaOAc (Scheme 1, Tables 1 and 2). The product distribution was substituent-dependent and could
Synthesis and investigation of tuberculosis inhibition activities of some 1,2,3-triazole derivatives
作者:Kadir Dabak、Özkan Sezer、Ahmet Akar、Olcay Anaç
DOI:10.1016/s0223-5234(02)01445-9
日期:2003.2
In this study, alpha-diazo-beta-oxoaldehyde compounds were condensed with different amines to yield 4-acyl-1H-1,2,3-triazole derivatives. The 1,2,3-triazole compounds were investigated for their inhibition activities against tuberculosis.
Diazoaldehyde Chemistry. Part 3. Synthesis of 4-acyl-1<i>H</i>-1,2,3-triazole derivatives
作者:Özkan Sezer、Kadir Dabak、Ahmet Akar、Olcay Anaç
DOI:10.1002/hlca.19960790212
日期:1996.3.20
Ten new α-diazo-β-oxoaldehydes were condensed with aniline, ammonia, hydroxylamine, and semicarbazide to yield new 4-acyl-(1-substituted)-1H-1,2,3-triazoles in moderate-to-good yields. The method is simple and regiospecific. The latter feature makes this method superior to the widely used acylacetylene + azide approach.
将十种新的α-重氮-β-乙醛与苯胺,氨,羟胺和氨基脲缩合,以中等至良好的产率生成新的4-酰基-(1-取代)-1 H -1,2,3-三唑。该方法简单且区域特异性。后一种功能使该方法优于广泛使用的酰基乙炔+叠氮化物方法。