Reaction of Secondary and Tertiary Amines with Nitric Oxide in the Presence of Oxygen.
作者:Takashi ITOH、Yuji MATSUYA、Hiromi MAETA、Michiko MIYAZAKI、Kazuhiro NAGATA、Akio OHSAWA
DOI:10.1248/cpb.47.819
日期:——
In order to clarify the role of oxygen in the reaction of amines with nitric oxide, secondary amines were allowed to react with nitric oxide in the presence of oxygen. Although N-nitrosamines were obtained as the main products in every case, the yields depended on the substituents and reaction solvents. Detailed investigation revealed that the rection proceeded by at least two pathways : one involving oxygen as a catalyst, and the other consuming the stoichiometric amount of oxygen. Both paths afforded the same nitroso adducts. It was suggested that a third path, a catalytic process via Drago's salts was also possible. The same reaction was applied to a tertiary amine, and it was found that the oxygen was consumed stoichiometrically in this case.
为了阐明氧在胺与一氧化氮反应中的作用,使二元胺在有氧条件下与一氧化氮反应。虽然每种情况都主要得到N-亚硝基胺产物,但其产率取决于取代基和反应溶剂。详细研究表明,这一反应至少通过两种途径进行:一种涉及氧气作为催化剂,另一种则消耗当量氧。两条途径都生成相同的亚硝基加合物。有人提出,还可能存在第三条途径,即通过德拉戈盐的催化过程。将同样的反应应用于三元胺,结果发现,这次氧气是按化学计量被消耗的。