Hydrogen-bond acceptance of bifunctional ligands in an alkyne-metal π complex

被引：64

作者：

Grotjahn, Douglas B. ^{[1
]}

Miranda-Soto, Valentin ^{[1
]}

Kragulj, Elijah J. ^{[1
]}

Lev, Daniel A. ^{[1
]}

Erdogan, Guelin ^{[1
]}

Zeng, Xi ^{[1
]}

Cooksy, Andrew L. ^{[1
]}

机构：

[1] San Diego State Univ, Dept Chem & Biochem, San Diego, CA 92182 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 01期

关键词：

D O I：

10.1021/ja0774616

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Experiment and theory have been used to study reactive alkyne pi complexes, intermediates in anti-Markovnikov alkyne hydration by GpRu bis(phosphine) catalysts with heterocyclic substituents. Each heterocycle accepts a hydrogen bond from an acetylene C-H, as revealed by NMR coupling constants between alkyne C-13 and H-1 nuclei as well as between alkyne C-13 and pyridine N-15 ((2h)J(CN)). Moreover, further alkyne transformations occur at temperatures from 50 to 90 degrees C below what is needed to convert a control compound without the heterocycles.

引用

页码：20 / +

页数：3

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