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MesPX 2 /IsPX 2 as Precursors for the Preparation of Phosphasilenes
Author(s) -
Liu Yashuai,
Keil Helena,
Zhong Mingdong,
Li Jiancheng,
Yang Zhi,
HerbstIrmer Regine,
Stalke Dietmar,
Roesky Herbert W.
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000966
Subject(s) - chemistry , silylene , hydrolysis , moiety , reactivity (psychology) , medicinal chemistry , moisture , nuclear chemistry , silicon , stereochemistry , organic chemistry , medicine , alternative medicine , pathology
The one‐pot reaction of L 1 SiCl (L 1 =PhC(N t Bu) 2 ) with MesPX 2 /IsPX 2 (X=Cl, Br; Is=2,4,6‐ i Pr 3 C 6 H 2 , Mes=2,4,6‐Me 3 C 6 H 2 ) in the presence of KC 8 yielded two phosphasilene compounds L 1 Si(Cl)=PIs ( 1 ) and L 1 Si(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 [L 1 (PHMes)Si] 2 ( μ ‐O) 2 ( 3 ) and L 1 Cl ( 4 ), respectively, due to the amount of water, while the hydrolysis of 1 afforded L 1 Cl ( 4 ). In addition to the silylene L 1 SiCl, different types of aluminum compounds were studied to react with IsPX 2 /MesPX 2 in the presence of KC 8 in THF at low temperature. However, we failed to isolate the desired compounds due to the formation of numerous by‐products.