Reaction ofN-aminorhodanine with various aldehydes under classical heating (in various solvents, using hydrochloric acid or acetic acid as catalyst) or by using Al2O3under microwave irradiation in solventless system led to the corresponding imines (2or3). All the compounds have been characterized by elemental analyses, NMR and IR spectroscopy. Results indicate that treatment ofN-aminorhodanine with aldehydes in acetonitrile as solvent or under solventless system led to the corresponding imines(2a-2e), while reactions were performed in solvent such as methanol3a-3ewas formed as products of ring cleavage and imination.
使用经典加热法(在不同溶剂中,使用
盐酸或
乙酸作为催化剂)或使用Al
2O
3在无溶剂系统中微波辐射,将
N-
氨基
罗丹宁与各种醛反应,得到相应的
亚胺(
2或
3)。所有化合物均经过元素分析、NMR和IR光谱表征。结果表明,在
乙腈作为溶剂或在无溶剂系统中处理
N-
氨基
罗丹宁与醛反应,将得到相应的
亚胺(2a-2e),而在
甲醇等溶剂中反应则会产生环裂和
亚胺化产物
(3a-3e)。