[(NHC)Fe(CO)<sub>4</sub>] Efficient Pre-catalyst for Selective Hydroboration of Alkenes
作者:Jianxia Zheng、Jean-Baptiste Sortais、Christophe Darcel
DOI:10.1002/cctc.201301062
日期:2014.3
6‐trimethylphenyl) imidazol‐2‐ylidene] complex was found to be an efficient pre‐catalyst for the hydroboration of functional alkenes in the presence of pinacolborane at room temperature. Notably, UV irradiation (350 nm) is important to promote this catalytic transformation. Interestingly, high chemo‐ and regioselectivities were observed as only anti‐Markovnikov boronate derivatives were obtained and various functional
[(IMes)Fe(CO)4 ] [IMes = 1,3-二(2,4,6-三甲基苯基)咪唑-2-亚烷基]络合物被发现是一种有效的预催化功能化烯烃的硼氢化反应在室温下存在频哪醇硼烷。值得注意的是,紫外线辐射(350 nm)对于促进这种催化转化很重要。有趣的是,由于仅获得了抗马尔科夫尼科夫硼酸酯衍生物并且可以耐受各种官能团,因此观察到了较高的化学选择性和区域选择性。