A. Ionkin, W. Marshall
2003
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0
Influential Citations
2
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Journal
Heteroatom Chemistry
Abstract
1,2-Bis[bis(trimethylsilyl)methylchlorophosphino]ethane was prepared by the reaction of 1,2-bis(dichlorophosphino)ethane and the Grignard reagent of bis(trimethylsilyl)chloromethane. It adds DBN (1,5-diazabicyclo[4.3.0]non-5-ene) in a 1:2 ratio. Subsequent treatment with t-BuLi converts the adduct to a condensation product, which in its enamine form reacts with MgCl2 (still present from the preparation of 1) to give the cyclic magnesium diamide 2. By additional coordination of the two phosphine sites of the condensation product, 2 attains a tricyclic structure. An unchanged DBN molecule completes the pentacoordination of the magnesium atom. The structure of product 2 has been determined by single crystal X-ray diffraction. © 2003 Wiley Periodicals, Inc. Heteroatom Chem 14:197–199, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.10122