在目前的工作中,包括 Zn (II) 和N-十六烷基咪唑配体的同核配位络合物首次用作合成 3,4-二氢-2 H -1,3-苯并恶嗪单体的高效均相中性有机催化剂. 因此,通过曼尼希型缩合反应成功合成了N-烷基或N-芳基取代的单苯并恶嗪和双苯并恶嗪(21 个实例)。毫不费力地以高收率和短反应时间获得纯产物,使该方法比现有的常见苯并恶嗪合成方法更有用和更有利。
Screening of simple carbohydrates as a renewable organocatalyst for the efficient construction of 1,3-benzoxazine scaffold
作者:Ayhan Yıldırım、Yunus Kaya、Mustafa Göker
DOI:10.1016/j.carres.2021.108458
日期:2021.12
performed to study the detailed mechanism of organocatalyst assisted synthesis of the benzoxazinemonomers. The results obtained from these calculations showed that the more realistic reaction pathway involves formation of a phenolate based intermediate which loses a water molecule to form benzenaminium ion. Subsequently, this ion provides the formation of the corresponding benzoxazines with good yields
<i>N</i>
‐alkyl imidazole‐based homonuclear coordination complex as a neutral organocatalyst for the faster and efficient construction of 3,4‐dihydro‐2
<i>H</i>
‐1,3‐oxazine scaffold
作者:Ayhan Yıldırım、Mustafa Göker
DOI:10.1002/aoc.6425
日期:2021.12
N-hexadecylimidazole ligand was used for the first time as a highly efficient homogeneous neutral organocatalyst for the synthesis of 3,4-dihydro-2H-1,3-benzoxazine monomers. Therefore, N-alkyl or N-arylsubstituted, both mono-benzoxazine and bis-benzoxazine, were successfully synthesized (21 examples) via Mannich-type condensation reactions. Effortlessly obtaining the pure product with high yields
在目前的工作中,包括 Zn (II) 和N-十六烷基咪唑配体的同核配位络合物首次用作合成 3,4-二氢-2 H -1,3-苯并恶嗪单体的高效均相中性有机催化剂. 因此,通过曼尼希型缩合反应成功合成了N-烷基或N-芳基取代的单苯并恶嗪和双苯并恶嗪(21 个实例)。毫不费力地以高收率和短反应时间获得纯产物,使该方法比现有的常见苯并恶嗪合成方法更有用和更有利。