Magnetically recyclable Cu-BTC@Fe<sub>3</sub>O<sub>4</sub> composite-catalyzed C<sub>(aryl)</sub>–S–P bond formation using aniline, P(O)H compounds and sulfur powder
Cu-BTC@Fe3O4 composite was prepared and exhibited good catalytic activity toward the synthesis of S-aryl phosphorothioates. This three-component reaction involved the coupling of in situ generated aryl diazonium salts from aniline, R2P(O)H, and sulfur powder, allowing the facile and direct formation of C(aryl)-S-P bonds. A broad scope of substrates survived the reaction conditions to afford the corresponding
Base-controlled Fe(Pc)-catalyzed aerobic oxidation of thiols for the synthesis of S–S and S–P(O) bonds
作者:Hai Huang、Jeffrey Ash、Jun Yong Kang
DOI:10.1039/c8ob00908b
日期:——
disulfides has been developed under mild reaction conditions. In addition, an aerobic oxidative cross-dehydrogenativecoupling (CDC) reaction of thiols with P(O)–H compounds (H-phosphonates and H-phosphine oxide) for the formation of S–P(O) bonds has been demonstrated under the Fe(Pc) catalysis system with a base additive. Control experiments revealed that the use of a base (DIPA) in this system controls
N-Chlorosuccinimide-promoted synthesis of thiophosphates from thiols and phosphonates under mild conditions
作者:Yi-Chen Liu、Chin-Fa Lee
DOI:10.1039/c3gc41839a
日期:——
A very simple N-chlorosuccinimide-promoted synthesis of thiophosphates through the coupling of thiols and phosphonates is reported. Notably, the reactions were carried out in the absence of a base. Functional groups including fluoro, bromo and trifluoromethyl are all tolerated by the reaction conditions employed. Both aryl and alkyl thiols are coupled smoothly with a broad spectrum of phosphonates to afford the corresponding thiophosphates in good to excellent yields.
Copper-catalyzed reductive coupling of aryl sulfonyl chlorides with H-phosphonates leading to S-aryl phosphorothioates
作者:Jie Bai、Xiuling Cui、Hui Wang、Yangjie Wu
DOI:10.1039/c4cc02693d
日期:——
An efficient protocol for copper-catalyzed reductive cross-coupling of aryl sulfonyl chlorides with H-phosphonates has been developed. The various S-arylphosphorothioates were afforded in up to 86% yield for 20 examples. This protocol features high efficiency, wide functional group tolerance, commercially available aryl sulfonyl chlorides as starting materials and base-free conditions.
Iodine-catalyzed Sulfenylation of H-phosphonates with Diaryl Disulfides under Metal, Base and Solvent-free Conditions
作者:Xiang-Mei Wu、Yu-Xiang Hong
DOI:10.2174/1570178614666161214153431
日期:2017.2.13
nitro or halogensubstituents including fluoro, chloro and bromo was introduced into the S-aryl phosphorothioates without any problem by employing diaryl disulfides bearing such a group on the phenyl ring at para or meta position, and the corresponding products were between 48-80%. Conclusion: A molecular iodine-catalyzed cross-coupling reaction between phosphonates and diaryl disulfides with H2O2 as