Unexpected C-C Bond Formation with a Ferrocenyl Fischer Carbene Complex

被引：1

作者：

Veit, Philipp ^{[1
]}

Seibert, Sebastian ^{[1
]}

Foerster, Christoph ^{[1
]}

Heinze, Katja ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Dept Chem, Duesbergweg 10-14, D-55128 Mainz, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2020年 / 646卷 / 13期

关键词：

Carbene complexes; Chromium; C-C coupling; Cyclobutenone; Ferrocene; DOTZ REACTION; BASIS-SETS; CHEMICAL MULTITALENTS; NUCLEOPHILE ADDITION; CHROMIUM; ALKYNES; CYCLOBUTENONES; INSERTION; TUNGSTEN; LIGANDS;

D O I：

10.1002/zaac.201900350

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Thermolysis of (OC)(5)Cr(C(OEt)(Fc)) (1) gives 2,N-diferrocenyl acetamide Fc-CH2-CO-NH-Fc (2) in the presence of amino ferrocene Fc-NH2. In the absence of a nucleophile, 4-ethoxy-2,3,4-triferrocenyl-cyclobut-2-enone (3) forms from 1 under thermal activation. Single crystal X-ray diffraction, NMR spectroscopy and mass spectrometry unambiguously confirm the structure of both unexpected products. Quantum chemical calculations and kinetic experiments by mass spectrometry and IR spectroscopy help to propose conceivable pathways to their formation.

引用

页码：940 / 947

页数：8

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