Iron‐Catalyzed gem‐Specific Dimerization of Terminal Alkynes

We report a gem‐specific homo‐ and cross‐dimerization of terminal alkynes catalyzed by a well‐defined iron(II) complex containing Cp* and picolyl N‐heterocyclic carbene (NHC) ligands, and featuring a piano‐stool structure. This catalytic system requires no additives and is compatible with a broad ra...

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Published in:Angewandte Chemie International Edition 2017-05, Vol.56 (22), p.6317-6320
Main Authors: Liang, Qiuming, Osten, Kimberly M., Song, Datong
Format: Article
Language:English
Subjects:
Alkynes
Dimerization
Functional groups
homogeneous catalysis
Iron
N-heterocyclic carbenes
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description We report a gem‐specific homo‐ and cross‐dimerization of terminal alkynes catalyzed by a well‐defined iron(II) complex containing Cp* and picolyl N‐heterocyclic carbene (NHC) ligands, and featuring a piano‐stool structure. This catalytic system requires no additives and is compatible with a broad range of substrates, including those with polar functional groups such as NH and OH. A real gem: Iron‐catalyzed gem‐specific homo‐ and cross‐dimerization of terminal alkynes was realized with a well‐defined piano‐stool iron(II) complex featuring Cp* and picolyl NHC ligands. The catalytic system requires no additives and is compatible with a broad range of substrates, including those with polar functional groups such as NH and OH.
doi_str_mv 10.1002/anie.201700904
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subjects Alkynes
Dimerization
Functional groups
homogeneous catalysis
Iron
N-heterocyclic carbenes
title Iron‐Catalyzed gem‐Specific Dimerization of Terminal Alkynes
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