Synthesis and structures of heteroleptic silylenes

Cheuk Wai So; Herbert W. Roesky; Prabhuodeyara M. Gurubasavaraj; Rainer B. Oswald; Michael T. Gamer; Peter G. Jones; Steffen Blaurock

doi:10.1021/ja074019e

Synthesis and structures of heteroleptic silylenes

Cheuk Wai So, Herbert W. Roesky^*, Prabhuodeyara M. Gurubasavaraj, Rainer B. Oswald, Michael T. Gamer, Peter G. Jones, Steffen Blaurock

^*Corresponding author for this work

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

115 Citations (Scopus)

Abstract

The reaction of benzamidinato silicon trichloride [{PhC(NR) ₂}SiCl₃] [R = Bu^t(1), SiMe₃ (2)] with 2 equiv of potassium in THF afforded mononuclear chlorosilylene [{PhC(NBu^t)₂}SiCl] (3) and [{PhC-(NSiMe₃) ₂}₂SiCl₂] (4), respectively. Compound 4 was formed by the disproportionation of unstable [{PhC-(NSiMe₃) ₂}SiCl]. The reaction of [{PhC(NBu^t)₂}SiCl ₃] (1) with 1 equiv of LiR (R = NMe₂, OBu^t, OPr^j, PPr^j₂) in THF yielded [{PhC(NBu ^t)₂}SiCl₂R] [R = NMe₂ (5), OBu ^t (6), OPr^j (7), PPr^j₂ (8)]. Treatment of 5-8 with 2 equiv of potassium in THF resulted in the novel heteroleptic silylene [{PhC(NBu^t)₂}SiR] [R = NMe ₂ (9), OBu^t (10), OPr^j (11), PPr ^j₂ (12)]. Compounds 4, 9, and 12 have been analyzed by X-ray crystallography.

Original language	English
Pages (from-to)	12049-12054
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	129
Issue number	39
DOIs	https://doi.org/10.1021/ja074019e
Publication status	Published - Oct 3 2007
Externally published	Yes

ASJC Scopus Subject Areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Synthesis and structures of heteroleptic silylenes",

abstract = "The reaction of benzamidinato silicon trichloride [{PhC(NR) 2}SiCl3] [R = But(1), SiMe3 (2)] with 2 equiv of potassium in THF afforded mononuclear chlorosilylene [{PhC(NBut)2}SiCl] (3) and [{PhC-(NSiMe3) 2}2SiCl2] (4), respectively. Compound 4 was formed by the disproportionation of unstable [{PhC-(NSiMe3) 2}SiCl]. The reaction of [{PhC(NBut)2}SiCl 3] (1) with 1 equiv of LiR (R = NMe2, OBut, OPrj, PPrj2) in THF yielded [{PhC(NBu t)2}SiCl2R] [R = NMe2 (5), OBu t (6), OPrj (7), PPrj2 (8)]. Treatment of 5-8 with 2 equiv of potassium in THF resulted in the novel heteroleptic silylene [{PhC(NBut)2}SiR] [R = NMe 2 (9), OBut (10), OPrj (11), PPr j2 (12)]. Compounds 4, 9, and 12 have been analyzed by X-ray crystallography.",

author = "So, {Cheuk Wai} and Roesky, {Herbert W.} and Gurubasavaraj, {Prabhuodeyara M.} and Oswald, {Rainer B.} and Gamer, {Michael T.} and Jones, {Peter G.} and Steffen Blaurock",

year = "2007",

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doi = "10.1021/ja074019e",

language = "English",

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T1 - Synthesis and structures of heteroleptic silylenes

AU - So, Cheuk Wai

AU - Roesky, Herbert W.

AU - Gurubasavaraj, Prabhuodeyara M.

AU - Oswald, Rainer B.

AU - Gamer, Michael T.

AU - Jones, Peter G.

AU - Blaurock, Steffen

PY - 2007/10/3

Y1 - 2007/10/3

N2 - The reaction of benzamidinato silicon trichloride [{PhC(NR) 2}SiCl3] [R = But(1), SiMe3 (2)] with 2 equiv of potassium in THF afforded mononuclear chlorosilylene [{PhC(NBut)2}SiCl] (3) and [{PhC-(NSiMe3) 2}2SiCl2] (4), respectively. Compound 4 was formed by the disproportionation of unstable [{PhC-(NSiMe3) 2}SiCl]. The reaction of [{PhC(NBut)2}SiCl 3] (1) with 1 equiv of LiR (R = NMe2, OBut, OPrj, PPrj2) in THF yielded [{PhC(NBu t)2}SiCl2R] [R = NMe2 (5), OBu t (6), OPrj (7), PPrj2 (8)]. Treatment of 5-8 with 2 equiv of potassium in THF resulted in the novel heteroleptic silylene [{PhC(NBut)2}SiR] [R = NMe 2 (9), OBut (10), OPrj (11), PPr j2 (12)]. Compounds 4, 9, and 12 have been analyzed by X-ray crystallography.

AB - The reaction of benzamidinato silicon trichloride [{PhC(NR) 2}SiCl3] [R = But(1), SiMe3 (2)] with 2 equiv of potassium in THF afforded mononuclear chlorosilylene [{PhC(NBut)2}SiCl] (3) and [{PhC-(NSiMe3) 2}2SiCl2] (4), respectively. Compound 4 was formed by the disproportionation of unstable [{PhC-(NSiMe3) 2}SiCl]. The reaction of [{PhC(NBut)2}SiCl 3] (1) with 1 equiv of LiR (R = NMe2, OBut, OPrj, PPrj2) in THF yielded [{PhC(NBu t)2}SiCl2R] [R = NMe2 (5), OBu t (6), OPrj (7), PPrj2 (8)]. Treatment of 5-8 with 2 equiv of potassium in THF resulted in the novel heteroleptic silylene [{PhC(NBut)2}SiR] [R = NMe 2 (9), OBut (10), OPrj (11), PPr j2 (12)]. Compounds 4, 9, and 12 have been analyzed by X-ray crystallography.

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JF - Journal of the American Chemical Society

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ER -

Synthesis and structures of heteroleptic silylenes

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