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Mono‐, Di‐ und Trikomplexierung von 9,10‐Dihydro‐9,10‐dimethyl‐9,10‐diboraanthracen mit Fe(CO) 3 ‐Komplexfragmenten
Author(s) -
Schulz Hartmut,
Pritzkow Hans,
Siebert Walter
Publication year - 1991
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19911241010
Subject(s) - chemistry , medicinal chemistry , ring (chemistry) , stereochemistry , crystallography , organic chemistry
Mono‐, Di‐, and Tricomplexation of 9,10‐Dihydro‐9,10‐dimethyl‐9,10‐diboraanthracene with Fe(CO) 3 Complex Fragments Reaction of 9,10‐dihydro‐9,10‐dimethyl‐9,10‐diboraanthracene ( 1c ) with (CO) 3 Fe(C 8 H 14 ) 2 gives green (CO) 3 Fe(η 6 ‐ 1c ) ( 2c ), red [(CO) 3 Fe] 2 (η 4 ,η 6 ‐ 1c ) ( 3c ), and orange [(CO) 3 Fe] 3 (η 4 ,η 4 ,η 6 ‐ 1c )( 4c ). The constitutions of 2c, 3c, 4c are derived from NMR and MS data and confirmed by X‐ray structure analyses. In 2c the Fe(CO) 3 group is η 6 ‐bonded to the heterocycle of planar 1c. 3c is formed from 2c by complexation of the diene of the benzo ring in anti position. In 4c both benzo rings of 2c are η 4 ‐bonded to the Fe(CO) 3 groups anti to the η 6 ‐bonded Fe(CO) 3 group.