Synthesis of Phosphaguanidines by Hydrophosphination of Carbodiimides with Phosphine Boranes

Autor: Cyrus Ramavarapu, John A. Milligan, Anjan Saha, Zhibin Li, Steven J. Geib, Peter Wipf, Anji Chen, Eakkaphon Rattanangkool, Heewon Lee, Carl A. Busacca, Guijun Wang, Chris H. Senanayake
Rok vydání: 2014
Předmět:
Zdroj: The Journal of Organic Chemistry. 79:9878-9887
ISSN: 1520-6904
0022-3263
Popis: The direct addition of anionic secondary phosphine boranes to carbodiimides yields both chiral and achiral phosphaguanidine boranes under ambient temperature conditions. An analogous preparation of menthol-derived phosphinite boranes is also described. These products can be deborinated to give the corresponding phosphines, and subsequently oxidized to give phosphine oxides. The robustness of this method was further demonstrated in the synthesis of structurally novel cyclic phosphaguanidines.
Databáze: OpenAIRE