124775-16-2Relevant articles and documents
Synthesis of 1,3-dichloro- cyclo -1,3-diphosphadiazanes from silylated amino(dichloro)phosphanes
Schulz, Axel,Villinger, Alexander,Westenkirchner, Andrea
, p. 11457 - 11468 (2013)
The synthesis of 1,3-dichloro-cyclo-1,3-diphosphadiazanes [ClP(μ-NR)]2 via elimination of Me3SiCl from silylated amino(dichloro)phosphanes, R-N(SiMe3)PCl2, was studied by different synthetic protocols starting from R-N(H)SiMe3 (R = Si(SiMe3)3 = Hyp, N(SiMe3)2, Mes* = 2,4,6-tri-tert-butylphenyl, Ter = 2,4-bis(2,4,6-trimethylphenyl) phenyl, Dipp = 2,6-diisopropylphenyl, Dmp =2,6-dimethylphenyl, Ad = Adamantyl, Trityl = Ph3C, Tos = tosyl = CH3C6H 4SO2, n-Oct = n-octyl, and Me3Si). A new synthetic route using trimethylsilyl-substituted amino(dichloro)phosphanes, R-N(SiMe3)PCl2, was developed to form cyclo-diphosph(III)- azanes simply by adding a mixture of RfOH/base (RfOH = hexafluoroisopropanole). By this method electron-rich/-poor aryl-, silyl-, and bissilylamino-substituted cyclo-diphosph(III)-azanes are accessible such as the unprecedented (Me3Si)2N-substituted species [ClP(μ-NN(SiMe3)2)]2 starting from tris(trimethylsilyl)hydrazine and PCl3. Additionally, the difficulties with the preparation of cyclo-diphosphadiazanes depending on the starting materials, solvents, and bases due to the competition of different reaction channels are studied.
P-CHLORO-N-(2,4,6-TRI-tert-BUTYLPHENYL)-λ3-IMINOPHOSPHINE. RETENTION OF CONFIGURATION IN REACTION WITH LITHIUM DIMETHYLAMIDE
Romanenko, V. D.,Ruban, A. V.,Reitel, G. V.,Povolotskii, M. I.,Markovskii, L. N.
, p. 1909 - 1910 (2007/10/02)
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