Vanadium-Catalyzed Stereo- and Regioselective Hydroboration of Alkynes to Vinyl Boronates
Vanadium-Catalyzed Stereo- and Regioselective Hydroboration of Alkynes to Vinyl Boronates
复制标题
钒催化炔烃立体和区域选择性硼氢化反应生成乙烯基硼酸酯
DOI:
10.1021/acscatal.2c01318
复制
发表时间:
2022
期刊:
影响因子:
12.9
通讯作者:
Dub, Pavel A.
中科院分区:
文献类型:
--
作者:
Zhang, Guoqi;Zeng, Haisu;Zheng, Shengping;Neary, Michelle C.;Dub, Pavel A.
Molecular complexes of vanadium catalyzecis-selectiveanti-Markovnikov hydroboration of alkynes to generate vinyl boronate esters with appreciable turnover numbers of up to 4000 at room temperature. This represents the first example of the use of vanadium in homogeneous catalytic hydroboration of alkynes. The method is tolerant to various functional groups, including C═C double bonds. Accordingly, 1-hexen-5-yne can be quantitatively and selectively reduced at the triple bond, leaving the double bond unaffected. Preliminary computational analysis of the catalytic cycle reveals both two-state reactivity and previously unknown complexity associated with the redox-active ligand. Specifically, it was found that the ligand can shuttle up to two electrons back-and-forth to and from the metal, which thus adapts three different oxidation states on the catalytic reaction coordinate.
登录
查看更多内容
影响因子:
15
作者:
Xu S;Zhang Y;Li B;Liu SY
通讯作者:
Liu SY
影响因子:
16.6
作者:
La Pierre, Henry S.;Arnold, John;Toste, F. Dean
通讯作者:
Toste, F. Dean
影响因子:
5.2
作者:
Nakajima, Kazunari;Kato, Takeru;Nishibayashi, Yoshiaki
通讯作者:
Nishibayashi, Yoshiaki
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
K. Hindson;B. Bruin
通讯作者:
B. Bruin