Diboranyl Phosphonium Cations: Synthesis and Chemical Properties

Autor:	Hans-Jörg Himmel, Michael Ganschow, Sebastian Litters, Elisabeth Kaifer
Rok vydání:	2015
Předmět:	Inorganic Chemistry chemistry.chemical_compound chemistry Bicyclic molecule Hydride Organic chemistry Boranes Phosphonium Guanidine Carbene Medicinal chemistry Phosphine Diborane
Zdroj:	European Journal of Inorganic Chemistry. 2015:5188-5195
ISSN:	1099-0682 1434-1948
Popis:	Hydride abstraction from the diborane [HB(hpp)]2 (hpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidinate) followed by base stabilization led to the first (highly water sensitive) diboranyl phosphonium cations of the general formulas [HB(hpp)2BPR3]+ and [HB(hpp)2BPHR2]+. The B–P bond strength could be varied over a relatively large range by choice of the substituents R on the phosphine. The cation [HB(hpp)2BPCy3]+ (Cy = cyclohexyl) was structurally characterized. The PCy3 base of this cation could be substituted by a stronger base (a carbene or a bicyclic guanidine). In solution, [HB(hpp)2BPCy3]+ very slowly decomposes, and [HB(hpp)3BH]+ was identified as one of the decomposition products.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84e1cbe584a77c75c5b5a6ef56c57a1a https://doi.org/10.1002/ejic.201500861 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.