Reagent used in Mitsunobu reaction; transformation of azides into carbamates, aziridines from azidoalcohols; iminophosphoranes and aza-Wittig reaction.
Chemical communications (Cambridge, England), (19), 2250-2251 (2002-10-26)
C-Phosphanyl-C-chloroiminium salts formally react as phosphonio(amino)carbenes with tert-butyl isocyanide and trimethylphosphine, and as R2NC+ with vinyl ether and diisopropylamine.
Hughes, D. L.; Reamer, R. A. et al.
Journal of the American Chemical Society, 110, 6487-6487 (110)
The Journal of organic chemistry, 68(8), 3241-3245 (2003-04-12)
A new class of orthoacylimine-derived chiral auxiliaries has been synthesized and tested in the nucleophilic addition of organolithium reagents to imines. The precursors can be prepared by an aza-Wittig reaction between the corresponding orthoacyl azide and a variety of aldehydes
Dalton transactions (Cambridge, England : 2003), 43(25), 9557-9566 (2014-05-16)
The reactions of the soft diphosphines o-C6H4(PMe2)2, Me2P(CH2)2PMe2, Et2P(CH2)2PEt2 or o-C6H4(PPh2)2 with NbF5 or TaF5 in anhydrous MeCN solution produce [MF4(diphosphine)2][MF6] (M = Nb or Ta), which have been characterised by microanalysis, IR, (1)H, (19)F{(1)H}, (31)P{(1)H} and (93)Nb NMR spectroscopy.
General base-catalyzed double-Michael reactions of allenes with various dinucleophiles are described. The reactions are facilitated most efficiently by a catalytic amount of trimethylphosphine, affording six types of C2-functionalized benzannulated five-membered heterocycles: benzimidazolines, benzoxazolines, benzothiazolines, 1,3-benzodioxoles, 1,3-benzoxathioles, and 1,3-benzodithioles. This atom-economical
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