Stereocontrolled C(sp<sup>3</sup>)–P bond formation with non-activated alkyl halides and tosylates
作者:Chu-Ting Yang、Jun Han、Jun Liu、Yi Li、Fan Zhang、Mei Gu、Sheng Hu、Xiaolin Wang
DOI:10.1039/c7ra02766d
日期:——
The C(sp3)–P bond is formed via the reaction between P–H compounds and non-activated alkyl electrophiles, especially secondary alkylhalides and tosylates. This reaction proceeds via an SN2 mechanism with inversion of configuration, so it can be used to form C–P bonds with stereocontrol from chiral secondary alcohols.
C(sp 3)-P键是通过P–H化合物与未活化的烷基亲电试剂(特别是仲烷基卤化物和甲苯磺酸酯)之间的反应形成的。该反应通过具有反转构型的S N 2机理进行,因此可以用于从手性仲醇的立体控制下形成C-P键。
Reactions of cycloalkyl chlorides and bromides with diphenylphosphide ions in liquid ammonia
作者:M�nica A. Nazareno、Sara M. Palacios、Roberto A. Rossi
DOI:10.1002/poc.610060707
日期:1993.7
The reactions of cycloalkyl (butyl, pentyl, hexyl and heptyl) chlorides and bromides with diphenylphosphide ions were studied in liquid ammonia. Cyclobutyl chloride was unreactive, whereas the bromide reacted giving the substitution product cyclobutyldiphenylphosphine (isolated as the oxide) in good yields; this reaction was catalysed by light and partially inhibited by p-dinitrobenzene (p-DNB). Cyclopentyl
Copper-Catalyzed Cross-Coupling of Alkyl and Phosphorus Radicals for C(sp<sup>3</sup>)–P Bond Formation
作者:Cheng-Kun Li、Ze-Kun Tao、Adedamola Shoberu、Wei Zhang、Jian-Ping Zou
DOI:10.1021/acs.orglett.2c02454
日期:2022.8.19
A CuI-catalyzed cross-coupling of alkyl- and phosphorus-centered radicals for C(sp3)–P bondformation is introduced. Diacyl peroxides, generated in situ from aliphatic acids and H2O2, serve as a source for alkyl radicals and also an initiator for the generation of phosphorus radicals from H–P(O) compounds.
介绍了一种 Cu I催化的以烷基和磷为中心的自由基的交叉偶联,以形成 C(sp 3 )-P 键。由脂肪酸和 H 2 O 2原位生成的二酰基过氧化物可作为烷基自由基的来源,也是从 H-P(O) 化合物生成磷自由基的引发剂。