Photolytic reaction of substituted (ethynyl)benzaldehyde and Fe(CO)(5): Formation of indenone and chelated iron complexes
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Title |
Photolytic reaction of substituted (ethynyl)benzaldehyde and Fe(CO)(5): Formation of indenone and chelated iron complexes
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Creator |
MATHUR, P
JHA, B RAGHUVANSHI, A JOSHI, RK MOBIN, SM |
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Subject |
Iron pentacarbonyl
Photolysis Ferracyclopentadiene Indenone Demetallation ORGANOMETALLIC COMPLEXES PHOTOCHEMICAL-REACTIONS FORMALDEHYDE COMPLEXES RUTHENIUM COMPLEXES MOLECULAR-STRUCTURE EFFICIENT SYNTHESIS CARBONYL COMPLEXES DONOR LIGANDS DERIVATIVES RING |
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Description |
At 0 degrees C, photolysis of a hexane solution containing Fe(CO)(5) and 2-(phenylethynyl)benzaldehyde (1) affords a mixture of mononuclear (tricarbonyliron-2-phenylindenone, (2) and binuclear acetylene coupled iron carbonyl complexes [Fe(CO)(3){eta(4)-2,4-(C6H4CHO)(2)-3,5-(C6H5)(2)C-4}Fe(CO)(3)], 3, [Fe(CO)(3){eta(4)-2-(eta(1)-C6H4CHO)-4-(C6H4CHO)-3,5-(C6H5)(2)C-4}Fe(CO)(2)], 4 and [Fe(CO)(3){eta(4)-4-(eta(1)-2-C6H4CHO)-2-(C6H4CHO)-3,5-(C6H5)(2) C-4}Fe(CO)(2)], 5. In compounds 4 and 5, the exocyclic iron atom is eta(4)-bonded with the ferracyclopentadiene unit, and it bears two terminal carbonyls. Its 18 electron count is completed by virtue of the aldehydic oxygen atom coordinating to the iron atom. Photolysis of 2-(ferrocenylethynyl)benzaldehyde (6) under similar condition leads to the formation of tricarbonyliron-2-ferrocenylindenone (7) and tetracarbonyl( 2-ferrocenyl-3-(2-formylphenyl)maleoyl)iron (8) predominantly. (C) 2012 Elsevier B.V. All rights reserved.
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Publisher |
ELSEVIER SCIENCE SA
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Date |
2014-10-15T15:58:59Z
2014-10-15T15:58:59Z 2012 |
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Type |
Article
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Identifier |
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 7127-14
http://dx.doi.org/10.1016/j.jorganchem.2012.02.032 http://dspace.library.iitb.ac.in/jspui/handle/100/15214 |
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Language |
en
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