中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | N,P-Di-t-butylphosphonamidic chloride | 81280-67-3 | C8H19ClNOP | 211.672 |
The reaction of tri(tert-butyl)plumbyl-lithium (1) with various phosphorus chlorides was studied. With diphenyl- and amino(phenyl)phosphorus chlorides the formation of hexa(tertbutyl) diplumbane (2) and tetraphenyldiphosphane (3) or the respective 1,2-bis(am ino)-1,2-diphenyl- diphosphanes [e. g. 5: amino = PhCH2(tBu)N] was dominant. The presence of at least one tert-butyl group at the phosphorus atom gave access to tri(tert-butyl)plumbyl-di(tert-butyl) phosphane (4) and to tri(tert-butyl)plumbyl-amino(tert-butyl)phosphanes [amino = tBu(H)N (6), Me(Ph)N (7), PhCH2(Me)N (8), PhCH2(tBu)N (9)] via the reaction of 1 with the corresponding phosphorus chlorides. Side products were again 2 and the corresponding diphosphanes, unidentified compounds, and in two cases, bis(phosphanyl)-di(tert-butyl)plumbanes [phosphanyl = tBu(H)N(tBu)P (10), Me(Ph)N(tBu)P (11)]. Trimethylplumbyl-benzyl(methyl)- amino(tert-butyl)phosphane (12) was prepared for comparison. All compounds were characterized by their 1H , 13C, 15N (9 ),31P and 207Pb NMR data. The coupling constants 1J(207Pb,31P) are large and negative, whereas the coupling constants 1J(207Pb, 13C) are small and can be of either sign. The coupling constants 2J(31P-N-13C) of 6 - 12 indicate a preferred conformation of the substituents at phosphorus and nitrogen
A number of alkyl(aryl)chloro-N,N-dialkylaminophosphanes RP(Cl)NR1R2 (1a-o ) were synthesized starting from alkyl(aryl)dichlorophosphanes RPCl2 and amines by a convenient procedure with nearly quantitative yields. The reactivity of alkyl(aryl)-N,N-dialkylamino(halogeno) phosphanes RP(Hal)NR1R2 (Hal = Cl, I) with cyclopentadienyl, bis(cyclopentadienyl), indenyl, bis(indenyl) and fluorenyl carbanions has been investigated. The new aminocyclopentadienylphosphanes R„Cp(R)PNR1R2 2a-f and 3a-c (R„Cp = Ind, Flu, Cp2CMe2, Ind2CEt2, Ind2(CH2)2) were characterized by spectroscopic techniques and elemental analyses. Flu(t-Bu)PN(H)t-Bu (2f) was characterized by X-ray diffraction analysis