Novel reactions of phosphonium ylides with perhaloalkanes: First examples of halophilic attacks by phosphonium ylides and a facile route to α-haloalkylphosphonium salts
作者:Xing-Ya Li、Jin-Shan Hu
DOI:10.1016/s0040-4039(01)91362-0
日期:1987.1
Phosphoniumylides Ph3PCHR (R = H, CH3, C2H5, n-C3H7, n-C5H11) react readily with perhalofluoroalkanes to afford regiospecifically α-haloalkylphosphonium salts Ph3P+-CHXR Y− (X = I, Br, Cl) in good yields. These reactions reveal a new type of reactivity of phosphoniumylides, i.e., the halophilic attack on CX bonds, and may be useful for the regiospecific synthesis of substituted haloolefins via
鏻叶立德博士3 PCHR(R = H,CH 3,C 2 H ^ 5,NC 3 ħ 7,NC 5 H ^ 11)容易反应与perhalofluoroalkanes,得到区域专一性α-haloalkylphosphonium盐博士3 P + -CHXRÿ - (X = I,Br,Cl),收率高。这些反应揭示了yl的一种新型反应性,即对CX键的嗜盐攻击,对于通过维蒂希反应进行取代卤代烯烃的区域特异性合成可能有用。
Jain, D V S.; Chadha, R, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1991, vol. 30, # 11, p. 929 - 935
作者:Jain, D V S.、Chadha, R
DOI:——
日期:——
Baker, Raymond; Boyes, Alastairs L.; Swain, Christopher J., Journal of the Chemical Society. Perkin transactions I, 1990, # 5, p. 1415 - 1421
作者:Baker, Raymond、Boyes, Alastairs L.、Swain, Christopher J.
DOI:——
日期:——
<b>A New Synthesis of 1,1-Dibromoölefins <b><i>via</i></b> Phosphine-Dibromomethylenes. the Reaction of Triphenylphosphine with Carbon Tetrabromide</b>
作者:N. B. Desai、N. McKelvie、Fausto Ramirez
DOI:10.1021/ja00868a057
日期:1962.5.1
Vogt, Hartmut; Meisel, Manfred, Phosphorus, Sulfur and Silicon and the Related Elements, 1996, vol. 111, p. 95