Cyclic (Amino)(Phosphonium Bora‐Ylide)Silanone: A Remarkable Room‐Temperature‐Persistent Silanone. (22nd November 2017)

• Record Type: Journal Article
• Authors: Rosas‐Sánchez, Alfredo; Alvarado‐Beltran, Isabel; Baceiredo, Antoine; Saffon‐Merceron, Nathalie; Massou, Stéphane; Hashizume, Daisuke; Branchadell, Vicenç; Kato, Tsuyoshi
• Is Part Of: Angewandte Chemie. Volume 129:Number 50(2017)
• Page Start: 16132
• Page End: 16136
• Publication Date: 2017-11-22
• Subjects: Bor-Ylide -- Borylene -- N-heterocyclische Carbene -- Phosphane -- Silanone; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201710358
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: A silanone substituted by bulky amino and phosphonium bora‐ylide substituents has been isolated in crystalline form. Thanks to the exceptionally strong electron‐donating phosphonium bora‐ylide substituent, the lifetime at room temperature of the silanone is dramatically extended ( t 1/2 =4 days) compared to the related (amino)(phosphonium ylide)silanoneVI ( t 1/2 =5 h), allowing easier manipulation and its use as precursor of new valuable silicon compounds. The interaction of silanone with a weak Lewis acid such as MgBr2 increases further its stability (no degradation after 3 weeks at room temperature).