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:
影响因子:
--
通讯作者:
Xi Zhenfeng
中科院分区:
文献类型:
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作者:
Zhu Miaomiao;Liu Liang;Zhang Yongliang;Yu Hai-Tao;Zhang Wen-Xiong;Xi Zhenfeng
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.