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作 者:Wen-Zhen Zhang Xiang Ren Xiao-Bing Lu
出 处:《Chinese Journal of Chemistry》2015年第5期610-613,共4页中国化学(英文版)
基 金:National Natural Science Foundation of China(No.21172026);Scientific Research Fund of Liaoning Provincial Education Department(No.L2012024);X.-B.L.gratefully acknowledges the Chang Jiang Scholars Program(No.T2011056)from Ministry of Education of the People's Republic of China.
摘 要:A carboxylative coupling reaction of various primary amine and 3-phenyl-2-propynyl or 2-nonynyl chloride in the presence of 8-diazabicyclo[5.4.0]undec-7-ene(DBU)using carbon dioxide as carboxylative reagent was presented.This transition-metal free reaction system shows broad substrate scope and gives a series of propargylcarbamates in moderate to good yield.The obtained N-alkyl substituted carbamate product can undergo base-catalyzed intramolecular cyclization reaction to afford functionalized 4-methylene-2-oxazolidinone in good yield.
关 键 词:carbon dioxide fixation AMINES propargylchlorides carboxylative coupling transition-metal free
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