Reaction of Nitrosonium (NO^+) with Schiff Bases

The reaction of nitrosonium (NO+) with Schiff bases produced diazonium salts and aldehydes in good yield. The reaction is assumed to be an electrophilic reaction of nitrosonium with imines via a four-member ring intermediate.

Novel Reaction of Nitrosonium(NO^+) with Hantzsch Dihydropyridines

The oxidation on 1,4-substituted Hantzsch 1,4-dihydropyridines with nitrosonium tetrafluoroborate (NO+BF4-) in acetonitrile gave Hantzsch pyridines in good yields. In some cases the dealkylation occurred. The evidences to draw the mechanism were presented.

Oxidation of 3,4-dihydropyrimidin-2(1H)-ones with nitrosonium(NO^+)

3,4-Dihydropyrimidin-2（1H）-ones （DHPMs） were oxidized with 1.2 equiv, of nitrosonium tetrafluoroborate （NO^＋BF4^-） to pyrimidin-2（1H）-ones in acetonitrile at room temperature in high yields.

Nitrosonium(NO^+) catalyzed Michael addition of indoles to unsaturated enones

吲哚到的有效迈克尔增加在不饱和例如 chalcones 和β - nitrostyrenes，在乙醇醚面对 nitrosonium tetrafluoroborate 的催化数量被完成。

Synthesis of Furano[3,2-c]- and Pyrano[3,2-c]quinolines upon Imino Diels-Alder Reactions Initiated by Nitrosonium （NO^＋）

有效 nitrosonium (NO+) 与 2,3-dihydrofuran 开始了 N-arylimines 的 aza-Diels-Alder 反应或 3,4-dihydro-2H-pyran 允许存取到 furano [3,2-c ]- 或 pyrano [3,2-c ] 喹啉。cis 和 trans 喹啉异构体的混合物在各种各样的比率和收益被获得。

固体磺酸促进亚硝酸异戊酯催化氧化苯甲醇反应

以亚硝酸异戊酯为催化剂,通过固体磺酸的促进作用原位产生亚硝酰正离子,实现了催化氧气氧化苯甲醇制备苯甲醛.300oC处理的Amberlyst15表现出较高的促进效果,在0.5MPaO2,80oC反应2h,苯甲醇转化率和苯甲醛选择性可分别达到90%和97%.通过红外、热分析及酸碱滴定研究了不同方法制得的固体酸的差别及其对反应促进效果的影响,并利用紫外-可见光谱和衍生化方法检测了亚硝酰正离子.