N -Tosylaziridine, a new substrate for chemical fixation of carbon dioxide via ring expansion reaction under atmospheric pressure
作者:Atsushi Sudo、Yosuke Morioka、Fumio Sanda、Takeshi Endo
DOI:10.1016/j.tetlet.2003.12.052
日期:2004.2
cycloaddition reaction with carbon dioxide. The reaction was successfully catalyzed by lithium bromide under atmospheric pressure to give the corresponding five-membered cyclic urethane, N-tosyl-1,3-oxazolidin-2-one, selectively. It was found that electron-donating nature of the substituent at 2-position of N-tosylaziridine accelerated the reaction, and this tendency allowed us to estimate the reaction mechanism
发现N-甲苯磺酰氮丙啶是用于与二氧化碳的环加成反应的有用底物。该反应在大气压下被溴化锂成功地催化,从而选择性地得到相应的五元环状氨基甲酸酯,N-甲苯磺酰基-1,3-恶唑烷-2-酮。发现在N-甲苯磺酰基氮丙啶的2-位上的取代基的供电子性加速了反应,这种趋势使我们能够估计反应机理。