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。
Radical isomerization via intramolecular ipso substitution of aryl ethers: Aryl translocation from oxygen to carbon
作者:Lee Eun、Lee Chulbom、Sung Tae Jin、Sung Whang Ho、Sok Li Kap
DOI:10.1016/s0040-4039(00)77609-x
日期:1993.4
Bromopropyl aryl ethers an converted to 3-arylpropanols under standard radical generating conditions in the presence of tributylstannane and AIBN. This rearrangement involves intramolecular ipso attack of the alkyl radicals which generates spiro cyclohexadienyl radical intermediates.