Cerium(III) Chloride Heptahydrate-Lithium Iodide: A Novel Reagent System for the Synthesis of N-Arylpyrrolidines
作者:J. Yadav、B. Reddy、G. Narasimhulu、D. Chandrakanth、G. Satheesh
DOI:10.1055/s-0029-1216970
日期:2009.10
Aldimines, generated in situ from arylamines and aryl aldehydes, undergo smooth cycloaddition with cyclopropane-1,1-dicarboxylate in the presence of the cerium(III) chloride heptahydrate-lithium iodide reagent system in refluxing acetonitrile under neutral conditions to produce the corresponding N-arylpyrrolidines in good yields with high selectivity. cerium(III) reagents - aldimines - cyclopropanedicarboxylate
醛亚胺,从芳基胺和芳基醛原位生成的,经历平滑环加成与环丙烷-1,1-二羧酸二乙酯在铈(III)七水合氯化锂,碘化试剂体系的存在下在回流的乙腈中在中性条件下,以产生相应的Ñ -芳基吡咯烷类化合物,收率高,选择性高。 铈(III)试剂-醛亚胺-环丙烷二羧酸酯-吡咯烷-环加成物-扩环