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Journal articles
Application of a base-induced [1,2]-rearrangement to synthesize thiophosphonate bidentate S(sp2)–N monoanionic ligand: Characterization of its silver and palladium complexes
Abstract : The O,O-diethyl thiophosphonate functional group has been introduced on position 2 of a pyrrole heterocycle following a two steps sequence that makes use of a [1,2] base-induced rearrangement applied for the first time to a O,O-diethyl thiophosphoramide intermediate. This rearrangement has been studied by low temperature NMR and the intermediates have been fully characterized. The coordination of this monoanionic bidentate (N,Ssp2) ligand to silver or palladium is studied The bidentate ligand 2 (O,O-diethyl pyrrol-2-ylthiophosphonate), associated with a palladium precursor, produces in the presence of triethylamine the complex trans-[Pd(η2-2′)2] 3 (2′ is deprotonated ligand 2). Ligand 2 also reacts with silver oxide in dichloromethane to give an unstable complex 2′-Ag that can be stabilized by addition of triphenylphosphine to produce the coordination complex 4 [Ag((η2-2′)(PPh3)2].
https://hal.univ-brest.fr/hal-01580243
Contributor : Nicolas Renard Connect in order to contact the contributor
Submitted on : Friday, September 1, 2017 - 11:10:36 AM
Last modification on : Monday, October 11, 2021 - 2:23:58 PM
Contributor : Nicolas Renard Connect in order to contact the contributor
Submitted on : Friday, September 1, 2017 - 11:10:36 AM
Last modification on : Monday, October 11, 2021 - 2:23:58 PM