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Synthesis and Structure of Low‐valent η 4 ‐Cinnamaldehyde Cobalt Complexes
Author(s) -
Geng Yizheng,
Chen Junyu,
Zhao Haiwei,
Sun Hongjian,
Xue Benjing,
Li Xiaoyan,
Fuhr Olaf,
Fenske Dieter
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700073
Subject(s) - decarbonylation , cinnamaldehyde , cobalt , chemistry , aldehyde , crystal structure , ketone , chalcone , medicinal chemistry , stereochemistry , photochemistry , crystallography , catalysis , inorganic chemistry , organic chemistry
Three η 4 ‐(C=C–C=O) coordination cobalt(I) complexes 1 – 3 were synthesized by the reactions of cinnamaldehyde, p ‐fluorocinnamaldehyde, and p ‐chlorocinnamaldehyde with CoMe(PMe 3 ) 4 . Complex 4 as η 2 ‐(C=C) coordination was prepared by the reaction of chalcone with Co(PMe 3 ) 4 . The structures of complexes 1 – 4 were confirmed by single‐crystal X‐ray diffraction. Although the reactions didn't undergo C–H bond activation and decarbonylation, the formation of complexes 1 – 4 deepens our understanding of the reactions between α,β‐unsaturated aldehyde or ketone with low‐valent central cobalt atom.