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Reductive Elimination at Pb(II) Center of an (Amino)plumbylene-Substituted Phosphaketene: New Pathway for Phosphinidene Synthesis.

ABSTRACT: A stable (amino)plumbylene-substituted phosphaketene 3 was synthesized by the successive reactions of PbCl₂ with two anionic reagents (lithium amidophosphine and NaPCO). Of particular interest, the thermal evolution of 3, at 80 °C, leads to the transient formation of corresponding amino- and phosphanylidene-phosphaketenes (6 and 7), via a reductive elimination at the Pb^II center forming new N-P and P-P bonds. Further evolution of 6 gives a new cyclic (amino)phosphanylidene phosphorane 4, which shows a unique reactivity as a phosphinidene. This result provides a new synthetic route to phosphinidenes, extending and facilitating further their access.

SUBMITTER: Timofeeva V

PROVIDER: S-EPMC9401577 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Reductive Elimination at Pb(II) Center of an (Amino)plumbylene-Substituted Phosphaketene: New Pathway for Phosphinidene Synthesis.

Timofeeva Vladislava V Baeza José Miguel Léon JML Nougué Raphael R Syroeshkin Mikhail M Segundo Rojas Guerrero Rene R Saffon-Merceron Nathalie N Altınbaş Özpınar Gül G Rathjen Saskia S Müller Thomas T Baceiredo Antoine A Kato Tsuyoshi T

Chemistry (Weinheim an der Bergstrasse, Germany) 20220615 44

A stable (amino)plumbylene-substituted phosphaketene 3 was synthesized by the successive reactions of PbCl<sub>2</sub> with two anionic reagents (lithium amidophosphine and NaPCO). Of particular interest, the thermal evolution of 3, at 80 °C, leads to the transient formation of corresponding amino- and phosphanylidene-phosphaketenes (6 and 7), via a reductive elimination at the Pb<sup>II</sup> center forming new N-P and P-P bonds. Further evolution of 6 gives a new cyclic (amino)phosphanylidene ...[more]

PMID: 35638144

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