期刊
RESEARCH ON CHEMICAL INTERMEDIATES
卷 45, 期 3, 页码 1639-1651出版社
SPRINGER
DOI: 10.1007/s11164-018-3690-8
关键词
DABCO-based cationic surfactants; [C-18-Dabco][Br]; Spirocarbocycles; Water medium; Ultrasound
资金
- Department of Science and Technology (DST), New Delhi [IF 140918]
A novel DABCO-based cationic surfactant [C-18-Dabco][Br] has been easily synthesized by the reaction of DABCO and octadecyl bromide in acetonitrile at room temperature in excellent yield. The synthesizedsurfactant was fully characterized by various techniques like FT-IR, H-1 NMR, C-13 NMR, LC-MS and TGA-DTAanalysis. Furthermore, the critical micelle concentration of the surfactant was determined by the conductivity measurement method. The activity of the [C-18-Dabco][Br] has been demonstrated for the one-pot synthesis of spirocarbocycles under ultrasonic conditions in water. The presence of the long alkyl chain acts as the hydrophobic part while the free tertiary nitrogen site in the surfactant acts as a base and enhances the overall catalytic activity.
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