A new efficient catalytic method for aza/thia-Michael addition reactions of amines/thiols with higher product yields has been developed. Combining single-walled carbon nanotubes (SWCNT) with triethylammonium hydrogen phosphate (TEAP) ionic liquid (IL) can work as a catalyst. We utilized Raman spectroscopy to gain insight into the interactions between IL and SWCNT. The interactions between SWCNT with TEAP were confirmed by the increasing intensity ratios and spectral shift in wavelength of the Raman D and G bands of SWCNT. Further, the morphology of the resulting composite materials of TEAP and SWCNT was determined by using scanning electron microscopy (SEM). Higher product yield in reduced reaction time is the key advantage of using bucky gel as a catalyst for Michael reaction.
开发了一种新型高效的催化方法,用于胺/
硫醇与更高产物收率的aza/thia-Michael加成反应。将单壁碳纳米管(SWCNT)与三
乙基磷酸氢
铵(
TEAP)
离子液体(IL)结合可作为催化剂。我们利用拉曼光谱学来深入了解IL与SWCNT之间的相互作用。通过SWCNT的拉曼D带和G带强度比增加以及波长位移确认了SWCNT与
TEAP之间的相互作用。此外,通过使用扫描电子显微镜(
SEM)确定了
TEAP和SWCNT复合材料的形貌。使用巴基凝胶作为Michael反应的催化剂的关键优势在于缩短反应时间并提高产物收率。