Novel 2-phosphabicyclo[2.2.2]oct-5-ene derivatives and their use in phosphinylations
作者:György Keglevich、János Kovács、Tamás Körtvélyesi、Gyula Parlagh、Tímea Imre、Krisztina Ludányi、László Hegedűs、Miklós Hanusz、Kálmán Simon、Andrea Márton、György Marosi、László Tőke
DOI:10.1002/hc.10221
日期:——
cycloaddition of the double-bond isomers (A and B) of dihydrophosphinine oxide 1 afforded novel phosphabicyclo[2.2.2]oct-5-ene derivates (2–4), formation of which was justified by PM3 semiempirical calculations. The compounds of dimer type (2–4) were utilized in the UV light-mediated fragmentation-related phosphinylation of nucleophiles, especially in that of alcohols. To explore the role of structural modifications
二氢膦氧化物 1 的双键异构体(A 和 B)的 [4 + 2] 环加成提供了新型的磷杂双环 [2.2.2] oct-5-ene 衍生物(2-4),其形成由 PM3 半经验证明计算。二聚体类型 (2-4) 的化合物用于紫外光介导的亲核试剂断裂相关的膦酰化,尤其是醇的膦酰化。为了探索结构修饰对断裂能力的作用,还合成了二硫化物 5、通过 2 氢化获得的磷酸双环辛烷 7 以及二氢膦氧化物 1 与苯醌 (7) 的加合物并进行了断裂测试。© 2004 Wiley Periodicals, Inc. 杂原子化学 15:97–106, 2004; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.10221