Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes
Publication type: Journal Article
Publication date: 2014-12-09
scimago Q1
wos Q1
SJR: 5.554
CiteScore: 22.5
Impact factor: 15.6
ISSN: 00027863, 15205126
PubMed ID:
25426965
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
A three-coordinate cobalt(I) complex exhibits high catalytic efficiency and selectivity as well as good functional group compatibility in alkyne hydrosilylation. [Co(IAd)(PPh3)(CH2TMS)] (1) (IAd = 1,3-diadamantylimidazol-2-ylidene) facilitates regio- and stereoselective hydrosilylation of terminal, symmetrical internal, and trimethylsilyl-substituted unsymmetrical internal alkynes to produce single hydrosilylation products in the forms of β-(E)-silylalkenes, (E)-silylalkenes, and (Z)-α,α-disilylalkenes, respectively, in high yields. The comparable catalytic efficiency and selectivity of the Co(I) silyl complex [Co(IAd)(PPh3)(SiHPh2)] that was prepared from the reaction of 1 with H2SiPh2, and the isolation of an alkyne Co(I) complex [Co(IAd)(η(2)-PhC≡CPh)(CH2TMS)] from the reaction of 1 with the acetylene, point out a modified Chalk-Harrod catalytic cycle for these hydrosilylation reactions. The high selectivity is thought to be governed by steric factors.
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Total citations:
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Mo Z. et al. Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes // Journal of the American Chemical Society. 2014. Vol. 136. No. 50. pp. 17414-17417.
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Mo Z., XIAO J., Gao Y., Deng L. Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes // Journal of the American Chemical Society. 2014. Vol. 136. No. 50. pp. 17414-17417.
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TY - JOUR
DO - 10.1021/ja510924v
UR - https://doi.org/10.1021/ja510924v
TI - Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes
T2 - Journal of the American Chemical Society
AU - Mo, Zhenbo
AU - XIAO, Jie
AU - Gao, Yafei
AU - Deng, Liang
PY - 2014
DA - 2014/12/09
PB - American Chemical Society (ACS)
SP - 17414-17417
IS - 50
VL - 136
PMID - 25426965
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
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@article{2014_Mo,
author = {Zhenbo Mo and Jie XIAO and Yafei Gao and Liang Deng},
title = {Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes},
journal = {Journal of the American Chemical Society},
year = {2014},
volume = {136},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/ja510924v},
number = {50},
pages = {17414--17417},
doi = {10.1021/ja510924v}
}
Cite this
MLA
Copy
Mo, Zhenbo, et al. “Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes.” Journal of the American Chemical Society, vol. 136, no. 50, Dec. 2014, pp. 17414-17417. https://doi.org/10.1021/ja510924v.