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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 22, 1992 - Issue 10
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Original Articles

New Convenient Methods for the Preparation of Pendant Chain Cyclobutadiene Tricarbonyliron Complexes

Christopher M. Adams Department of Chemistry, Oklahoma State University Stillwater, Oklahoma, 74078-0447
,
John E. Schemenaur Department of Chemistry, Oklahoma State University Stillwater, Oklahoma, 74078-0447
,
Ellen S. Crawford Department of Chemistry, Oklahoma State University Stillwater, Oklahoma, 74078-0447
&
Scott A. Joslin Department of Chemistry, Oklahoma State University Stillwater, Oklahoma, 74078-0447
Pages 1385-1396 | Received 16 Dec 1991, Published online: 23 Sep 2006
 
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Abstract

Simple, economical, and more practical procedures have been developed for the synthesis of precursors to pendant chain cyclobutadiene metal complexes. Facile reduction of the mono and disubstituted 1,2-cyclobutenediones gave cyclobutenediols which were converted to their corresponding trans dibromides with PBr3. Reduction and complexation using Fe2(CO)9 formed the pendant chain cyclobutadiene tricarbonyliron complexes in good yields.

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