Nucleophilic displacement on 4-nitrophenyl dimethyl phosphinate by ethoxide ion: alkali metal ion catalysis and mechanism
作者:Erwin Buncel、Kendall G. Albright、Ikenna Onyido
DOI:10.1039/b314886f
日期:——
interpreted in terms of a stepwisemechanism involving rate-limiting formation of a pentacoordinate intermediate. Comparison of the present results with those of Williams on the aqueous alkaline hydrolysis of Me(2)P(O)-OPhX and Ph(2)P(O)-OPhX esters, establishes the rationale for a change in mechanism in the more basic EtO(-)/EtOH nucleophile/solvent system by a stepwisemechanism instead of a concerted
Organophosphoryl adducts of tris(pentafluorophenyl)borane; crystal and molecular structure of B(C6F5)3·Ph3PO
作者:Michael A. Beckett、David S. Brassington、Mark E. Light、Michael B. Hursthouse
DOI:10.1039/b100981h
日期:——
B(C6F5)3·Ph3PO was further characterised in the solid state by a single-crystal X-ray diffraction study. 31P NMR chemical shifts and ν(PO) IR stretching frequencies are discussed in relation to substituent at phosphorus.
B(C 6 F 5)3与有机磷酰基的一系列1:1加合物配体Et 3 PO,Ph 3 PO,Pr n 3 PO,Oct n 3 PO,(MeO)3 PO,(EtO)3 PO,(PhO)3 PO,(EtO)2(H)PO,(Bu n O)合成并表征了2(H)PO,(PhO)2(H)PO,(MeO)2 MePO,(EtO)2 MePO,(EtO)2 PhPO和(EtO)Me 2 PO元素分析,mp和光谱(1 H,13 C,11 B,19 F,31 P NMR 和 红外) 方法。通过单晶X射线衍射研究进一步表征了B(C 6 F 5)3 ·Ph 3 PO的固态。31 P NMR化学位移和ν(PO)红外 关于磷的取代基,讨论了拉伸频率。
Livantsov, M. V.; Prishchenko, A. A.; Lutsenko, I. F., Journal of general chemistry of the USSR, 1987, p. 928 - 935
作者:Livantsov, M. V.、Prishchenko, A. A.、Lutsenko, I. F.
DOI:——
日期:——
Lutsenko, I. F.; Prischenko, A. A.; Livantsov, M. V., Phosphorus and Sulfur and the Related Elements, 1988, vol. 35, p. 329 - 334
作者:Lutsenko, I. F.、Prischenko, A. A.、Livantsov, M. V.
DOI:——
日期:——
Lutsenko, I. F.; Prishchenko, A. A.; Livantsov, M. V., Doklady Chemistry, 1987, vol. 295, # 8, p. 344 - 347
作者:Lutsenko, I. F.、Prishchenko, A. A.、Livantsov, M. V.