Conversion of (sp<sup>3</sup>)C–F Bonds of Alkyl Fluorides to (sp<sup>3</sup>)C–Heteroatom (Heteroatom = I, SR, SeR, TeR) Bonds by the Use of Magnesium Reagents Having Heteroatom Substituents
作者:Shameem Ara Begum、Jun Terao、Nobuaki Kambe
DOI:10.1246/cl.2007.196
日期:2007.1
A convenient method for conversion of (sp 3 )C-Fbonds to (sp 3 )C-Z (Z = I, SR, SeR, TeR) bonds has been developed. The reaction proceeds at room temperature using magnesium salts (Z-MgX). S N 2 mechanism for substitiution of primary alkyl fluorides with MgI 2 in ether was supported by the inversion of the stereochemistry of the carbon connecting to F.
已经开发了一种将 (sp 3 )CF 键转换为 (sp 3 )CZ (Z = I, SR, SeR, TeR) 键的简便方法。该反应在室温下使用镁盐 (Z-MgX) 进行。用 MgI 2 在醚中取代伯烷基氟化物的 SN 2 机制得到了连接到 F 的碳的立体化学反转的支持。
On the reactivity of indium(III) benzenechalcogenolates (chalcogen = sulfur and selenium) towards organyl halides for the synthesis of organyl phenyl chalcogenides
作者:Clovis Peppe、Liérson Borges de Castro
DOI:10.1139/v09-043
日期:2009.5
was examined. A practical one-pot method to prepare organyl phenyl chalcogenides from indium metal and diphenyl dichalcogenide was found. The coupling is fairly broad in scope and generally works better for organyl halides capable to produce stablecarbocations.
Reductive Cleavage of the Se–Se Bond by the Sm–Me3SiCl–H2O System: Preparation of Unsymmetrical Phenyl Selenides
作者:Lei Wang、Yongmin Zhang
DOI:10.1039/a803305f
日期:——
The reduction of diphenyl diselenide by the SmâMe3SiClâH2O system led to a selenide anion. This âlivingâ species reacted with organic halides, epoxides, α,β-unsaturated esters and α,β-unsaturated nitriles to afford unsymmetrical phenylselenides in good yields under mild and neutral conditions.
Ultrasonic formation and reactions of sodium phenylselenide
作者:Steven V. Ley、lan A. O'Neil、Caroline M.R. Low
DOI:10.1016/s0040-4020(01)82086-x
日期:1986.1
Treatment of diphenyldiselenide with sodium metal in tetrahydrofuran under ultrasonic conditions conveniently gave a suspension of sodium phenylselenide which could be transferred by syringe or cannula and reacted with sulphonates, halides and epoxides.
Photoinduced electron transfer (PET) promoted cross-coupling of organoselenium and organosilicon compounds: a new Carbon–Carbon bond formation strategy
作者:Ganesh Pandey、R. Sochanchingwung
DOI:10.1039/c39940001945
日期:——
PET promoted cross-coupling of organoselenium compounds and silyl enol ethers is reported.