通过金属转移将结构明确的烯基锂选择性转化为烯基镁。
Selective Transformation of Well-Defined Alkenyllithiums to Alkenylmagnesiums via Transmetalation.
作者信息
Zhu Miaomiao, Liu Liang, Zhang Yongliang, Yu Hai-Tao, Zhang Wen-Xiong, Xi Zhenfeng
机构信息
Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of, Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China.
College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, P. R. China.
出版信息
Chemistry. 2018 Mar 2;24(13):3186-3191. doi: 10.1002/chem.201704611. Epub 2018 Jan 8.
A series of butadienyl organomagnesium complexes, including 1-Li-4-(MgR)-butadienes, 1,4-bis(MgR)-butadienes, and 1-Mg-4-(MgR)-butadiene were synthesized starting with 1,4-dilithio butadienes via the transmetalation reaction between alkenyllithium bond and alkenylmagnesium bond. Single-crystal X-ray structural analysis of these butadienyl organomagnesiates revealed unique bonding modes. Study on their structural transformation demonstrated that 1-Li-4-(MgR)-butadiene is the key intermediate in the reaction process leading to the formation of 1,4-bis(MgR)-butadiene and 1-Mg-4-(MgR)-butadiene.
一系列丁二烯基有机镁配合物，包括1-锂-4-（镁基R）-丁二烯、1,4-双（镁基R）-丁二烯和1-镁-4-（镁基R）-丁二烯，是从1,4-二锂丁二烯开始，通过烯基锂键和烯基镁键之间的金属转移反应合成的。对这些丁二烯基有机镁酸盐的单晶X射线结构分析揭示了独特的键合模式。对它们结构转变的研究表明，1-锂-4-（镁基R）-丁二烯是反应过程中导致形成1,4-双（镁基R）-丁二烯和1-镁-4-（镁基R）-丁二烯的关键中间体。
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