Synthesis, Structure, and Properties of {(Me3Si)2CH}2SnH(OH)

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• 作者：Frank Schager ; Richard Goddard ; Klaus Seevogel ; and Klaus-Richard Pö ; rschke
• 刊名：Organometallics
• 出版年：1998
• 出版时间：April 13, 1998
• 年：1998
• 卷：17
• 期：8
• 页码：1546 - 1551
• 全文大小：142K
• 年卷期：v.17,no.8(April 13, 1998)
• ISSN：1520-6041

文摘

The Lappert stannylene SnR₂, R =CH(SiMe₃)₂, adds water and methanol toyield thelow-melting-point, crystalline hydroxy- and methoxydiorganostannanesR₂SnH(OH) (1) andR₂SnH(OMe) (2). The correspondingdeuterated derivatives R₂SnD(OD)(1-d₂) andR₂SnD(OCD₃) (2-d₄) have alsobeen prepared. Compounds 1 and 2 react withD₂O with retentionof the Sn-H bond to give R₂SnH(OD)(1-d(SnOD)). The reaction is thought toproceed byan S_N2 type mechanism via a[R₂SnH(OR')₂]^- (R'= H, D, or Me) intermediate or transitionstate. Consistent with this,2-d₄ is hydrolyzed toR₂SnD(OH) (1-d(SnD)).A single-crystalX-ray structure analysis of 1 reveals that individualmolecules form C_i-symmetricaldimersin the solid with short O-H···O* hydrogen bridges (O···O*= 2.854(2) Å). Reaction of 1with(ⁱPr₂PC₂H₄PⁱPr₂)Pd(C₂H₄)results in oxidative addition of the Sn-H bond to Pd⁰ togivethe known(ⁱPr₂PC₂H₄PⁱPr₂)Pd(H)-SnR₂(OH)(3).