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Published February 5, 2001 | Supplemental Material
Journal Article Open

Reaction of Diazoalkanes with Iron Phosphine Complexes Affords Novel Phosphazine Complexes


The crystal structures of novel products from the insertion of various diazoalkanes into the iron−phosphorus bond in FeCl_2L_2 (L = phosphine) complexes are presented. Specifically, ethyl diazoacetate and diphenyldiazomethane reacted with FeCl_2(PMe_2Ph)_2 to afford FeCl_2[N(PMe_2Ph)NC(H)CO_2Et]_2 (1) and FeCl_2[N(PMe_2Ph)NCPh_2] (2). Interestingly, ethyl diazoacetate inserted into both iron phosphine bonds of FeCl_2(d^ippe)_2 to afford the seven-membered metallacycle FeCl_2{N[NC(H)CO_2Et]P^iPr)_2CH_2CH_2P(^iPPr)_2N[NC(H)CO_2Et]}_2 (3).

Additional Information

© 2001 American Chemical Society. Received 10 July 2000. Published online 6 January 2001. Published in print 1 February 2001. J.L. gratefully acknowledges the National Institutes of Health for a Postdoctoral Fellowship. In addition, we thank crystallographers Lawrence M. Henling and Michael Day.

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