A palladium-catalyzed carbothiolation via the reaction of a σ-alkyl palladium intermediate with a TIPS thioether is described. It was found that the use of Cs2CO3, (IPr)Pd(allyl)Cl, and a TIPS thioether was key to obtaining alkyl aryl and dialkyl sulfides in high yield through the reaction of a σ-alkyl palladium intermediate. The developed reaction is applicable to a wide range of substrates and thiols
描述了通过σ-烷基钯中间体与TIPS硫醚反应的钯催化的羰基硫醇化。发现使用Cs 2 CO 3,(IPr)Pd(烯丙基)Cl和TIPS硫醚是通过σ-烷基钯中间体反应以高收率获得烷基芳基和二烷基硫化物的关键。所开发的反应适用于多种底物和硫醇。
One-Pot Synthesis of Unsymmetrical Diaryl Thioethers by Palladium-Catalyzed Coupling of Two Aryl Bromides and a Thiol Surrogate
作者:Manuel A. Fernández-Rodríguez、John F. Hartwig
DOI:10.1002/chem.200902313
日期:2010.2.22
convenient, and efficient: A general and operationally simple one‐potsynthesis of unsymmetrical diaryl sulfides by coupling two different bromoarenes and triisopropylsilanethiol (TIPS‐SH) is reported. This protocol overcomes the narrow availability of arene thiols and their instability to oxidation. These reactions catalyzed by palladium complexes generated from the alkylbisphosphine CyPF‐tBu occur
非常简单、方便和高效:报道了一种通过将两种不同的溴芳烃和三异丙基硅烷硫醇 (TIPS-SH) 偶联来通用且操作简单的一锅法合成不对称二芳基硫化物。该协议克服了芳烃硫醇的狭窄可用性及其对氧化的不稳定性。这些由烷基双膦 CyPF- t Bu生成的钯配合物催化的反应以良好的收率发生,具有广泛的范围和高官能团耐受性。
Potassium triisopropylsilanethiolate: Vinyl and aryl sulfides through Pd-catalyzed cross coupling
作者:Anil M. Rane、Edgar I. Miranda、John A. Soderquist
DOI:10.1016/s0040-4039(00)76870-5
日期:1994.5
Vinyl and aryl halides are efficiently converted, under Pd catalysis, with KSTIPS (1) to the corresponding silyl sulfides (2, 3). The naphthyl derivative was easily hydrolyzed to the mercaptan 4, or alkylated or alkenylated to provide unsymmetrical sulfides (5, 6).
Oxidation of aromatic and aliphatic triisopropylsilanylsulfanyls to sulfonyl chlorides: preparation of sulfonamides
A series of aromatic and aliphatic triisopropylsilanylsulfanyls were prepared and oxidized to the sulfonyl chlorides with KNO3/SO2Cl2. The sulfonyl chlorides were characterized via their conversion to sulfonamides.
制备了一系列芳族和脂族三异丙基硅烷基硫烷基,并用KNO 3 / SO 2 Cl 2氧化为磺酰氯。磺酰氯通过转化为磺酰胺来表征。
A General and Efficient Method for the Synthesis of Silyl-Protected Arenethiols from Aryl Halides or Triflates
作者:Michael Kreis、Stefan Bräse
DOI:10.1002/adsc.200404299
日期:2005.2
An improved palladium-catalyzed synthesis of silyl-protectedarenethiols has been developed. This method is particularly useful because of its experimental simplicity, high generality and high level of functional group toleration. The first synthesis of enantiomerically pure [2.2]paracyclophane-4-thiol was realized employing this method.