MesPX2/IsPX2 as Precursors for the Preparation of Phosphasilenes

Yashuai Liu; Helena Keil; Mingdong Zhong; Jiancheng Li; Zhi Yang; Regine Herbst-Irmer; Dietmar Stalke; Herbert W. Roesky

doi:10.1002/ejic.202000966

MesPX₂/IsPX₂ as Precursors for the Preparation of Phosphasilenes

Yashuai Liu
, Helena Keil
, Mingdong Zhong
, Jiancheng Li
, Zhi Yang^*
, Regine Herbst-Irmer
, Dietmar Stalke^*
, Herbert W. Roesky^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology
University of Göttingen

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The one-pot reaction of L¹SiCl (L¹=PhC(NtBu)₂) with MesPX₂/IsPX₂ (X=Cl, Br; Is=2,4,6-iPr₃C₆H₂, Mes=2,4,6-Me₃C₆H₂) in the presence of KC₈ yielded two phosphasilene compounds L¹Si(Cl)=PIs (1) and L¹Si(Cl)=PMes (2) with interesting Cl−Si=P characteristics. The introduction of Cl−Si=P moiety improved the reactivity of phosphasilene. Furthermore, phosphasilenes 1 and 2 with LSi as well as Si=P building units are sensitive to moisture with distinct differences. The hydrolysis of 2 resulted in two products [L¹(PHMes)Si]₂(μ-O)₂ (3) and L¹Cl (4), respectively, due to the amount of water, while the hydrolysis of 1 afforded L¹Cl (4). In addition to the silylene L¹SiCl, different types of aluminum compounds were studied to react with IsPX₂/MesPX₂ in the presence of KC₈ in THF at low temperature. However, we failed to isolate the desired compounds due to the formation of numerous by-products.

Original language	English
Pages (from-to)	639-643
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Volume	2021
Issue number	7
DOIs	https://doi.org/10.1002/ejic.202000966
Publication status	Published - 19 Feb 2021

Keywords

Phosphasilanes
Phosphinidenes
Phosphorus
Reduction
Silicon
Structure elucidation

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10.1002/ejic.202000966

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@article{1869919035bf441c8f141e061e085014,

title = "MesPX2/IsPX2 as Precursors for the Preparation of Phosphasilenes",

abstract = "The one-pot reaction of L1SiCl (L1=PhC(NtBu)2) with MesPX2/IsPX2 (X=Cl, Br; Is=2,4,6-iPr3C6H2, Mes=2,4,6-Me3C6H2) in the presence of KC8 yielded two phosphasilene compounds L1Si(Cl)=PIs (1) and L1Si(Cl)=PMes (2) with interesting Cl−Si=P characteristics. The introduction of Cl−Si=P moiety improved the reactivity of phosphasilene. Furthermore, phosphasilenes 1 and 2 with LSi as well as Si=P building units are sensitive to moisture with distinct differences. The hydrolysis of 2 resulted in two products [L1(PHMes)Si]2(μ-O)2 (3) and L1Cl (4), respectively, due to the amount of water, while the hydrolysis of 1 afforded L1Cl (4). In addition to the silylene L1SiCl, different types of aluminum compounds were studied to react with IsPX2/MesPX2 in the presence of KC8 in THF at low temperature. However, we failed to isolate the desired compounds due to the formation of numerous by-products.",

keywords = "Phosphasilanes, Phosphinidenes, Phosphorus, Reduction, Silicon, Structure elucidation",

author = "Yashuai Liu and Helena Keil and Mingdong Zhong and Jiancheng Li and Zhi Yang and Regine Herbst-Irmer and Dietmar Stalke and Roesky, \{Herbert W.\}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors. European Journal of Inorganic Chemistry published by Wiley-VCH GmbH",

year = "2021",

month = feb,

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doi = "10.1002/ejic.202000966",

language = "English",

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T1 - MesPX2/IsPX2 as Precursors for the Preparation of Phosphasilenes

AU - Liu, Yashuai

AU - Keil, Helena

AU - Zhong, Mingdong

AU - Li, Jiancheng

AU - Yang, Zhi

AU - Herbst-Irmer, Regine

AU - Stalke, Dietmar

AU - Roesky, Herbert W.

PY - 2021/2/19

Y1 - 2021/2/19

N2 - The one-pot reaction of L1SiCl (L1=PhC(NtBu)2) with MesPX2/IsPX2 (X=Cl, Br; Is=2,4,6-iPr3C6H2, Mes=2,4,6-Me3C6H2) in the presence of KC8 yielded two phosphasilene compounds L1Si(Cl)=PIs (1) and L1Si(Cl)=PMes (2) with interesting Cl−Si=P characteristics. The introduction of Cl−Si=P moiety improved the reactivity of phosphasilene. Furthermore, phosphasilenes 1 and 2 with LSi as well as Si=P building units are sensitive to moisture with distinct differences. The hydrolysis of 2 resulted in two products [L1(PHMes)Si]2(μ-O)2 (3) and L1Cl (4), respectively, due to the amount of water, while the hydrolysis of 1 afforded L1Cl (4). In addition to the silylene L1SiCl, different types of aluminum compounds were studied to react with IsPX2/MesPX2 in the presence of KC8 in THF at low temperature. However, we failed to isolate the desired compounds due to the formation of numerous by-products.

AB - The one-pot reaction of L1SiCl (L1=PhC(NtBu)2) with MesPX2/IsPX2 (X=Cl, Br; Is=2,4,6-iPr3C6H2, Mes=2,4,6-Me3C6H2) in the presence of KC8 yielded two phosphasilene compounds L1Si(Cl)=PIs (1) and L1Si(Cl)=PMes (2) with interesting Cl−Si=P characteristics. The introduction of Cl−Si=P moiety improved the reactivity of phosphasilene. Furthermore, phosphasilenes 1 and 2 with LSi as well as Si=P building units are sensitive to moisture with distinct differences. The hydrolysis of 2 resulted in two products [L1(PHMes)Si]2(μ-O)2 (3) and L1Cl (4), respectively, due to the amount of water, while the hydrolysis of 1 afforded L1Cl (4). In addition to the silylene L1SiCl, different types of aluminum compounds were studied to react with IsPX2/MesPX2 in the presence of KC8 in THF at low temperature. However, we failed to isolate the desired compounds due to the formation of numerous by-products.

KW - Phosphasilanes

KW - Phosphinidenes

KW - Phosphorus

KW - Reduction

KW - Silicon

KW - Structure elucidation

UR - https://www.scopus.com/pages/publications/85099246314

U2 - 10.1002/ejic.202000966

DO - 10.1002/ejic.202000966

M3 - Article

AN - SCOPUS:85099246314

SN - 1434-1948

VL - 2021

SP - 639

EP - 643

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 7

ER -

MesPX₂/IsPX₂ as Precursors for the Preparation of Phosphasilenes

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