Selective Transformation of Well-Defined Alkenyllithiums to Alkenylmagnesiums via Transmetalation

Selective Transformation of Well-Defined Alkenyllithiums to Alkenylmagnesiums via Transmetalation
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通过金属转移选择性将明确定义的烯基锂转化为烯基镁

DOI:
10.1002/chem.201704611
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发表时间:
2018
期刊:
Chemistry - A European Journal
影响因子:
--
通讯作者:
Xi Zhenfeng
Xi Zhenfeng
中科院分区:
其他
文献类型:
--
作者:
Zhu Miaomiao;Liu Liang;Zhang Yongliang;Yu Hai-Tao;Zhang Wen-Xiong;Xi Zhenfeng

文献摘要

相似文献

以1,4-二硫代丁二烯为原料,通过烯基锂键与烯基镁键的金属转移反应,合成了一系列丁二烯基有机镁配合物,包括1-Li-4-(MgR)-丁二烯、1,4-双(MgR)-丁二烯和1-Mg-4-(MgR)-丁二烯。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-Li-4-(MgR)-丁二烯是导致形成1,4-双(MgR)-丁二烯和1-Mg-4-(MgR)-丁二烯的反应过程中的关键中间体。
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.