4416-66-4Relevant academic research and scientific papers
Direct Carboxylation of Aryl Tosylates by CO2 Catalyzed by in situ-Generated Ni0
Rebih, Fatima,Andreini, Manuel,Moncomble, Aurlien,Harrison-Marchand, Anne,Maddaluno, Jacques,Durandetti, Muriel
supporting information, p. 3758 - 3763 (2016/03/08)
A novel Ni0-catalyzed carboxylation of aryl tosylates with carbon dioxide has been achieved under moderate temperatures and atmospheric pressure. In this procedure, the active Ni0 species is generated in situ by simply mixing the Ni0 precatalyst [NiBr2(bipy)] with an excess of manganese metal. This approach requires neither a glove-box nor the tedious preparation of sophisticated intermediate organometallic derivatives. This mild, convenient, and user-friendly process is successfully applied to the valorization of carbon dioxide and the synthesis of versatile reactants with broad tolerance of substituents.
Dimerization of Aryl Sulfonates by in situ Generated Nickel(0)
Maddaluno, Jacques,Durandetti, Muriel
supporting information, p. 2385 - 2388 (2015/10/19)
A mild and user-friendly nickel-catalyzed method for the reductive homocoupling of aromatic tosylates is presented. The reaction proceeds between room temperature and 60 °C, with stable substrates (ArOTs) easily prepared from inexpensive and commercially available phenols or naphthols. It relies on a catalytic amount (10 mol%) of a robust catalyst (NiBr2bipy) that does not require the preparation of sensitive organometallic intermediates. Yields are good to excellent.
Copper-catalysed coupling of aryl tosylates with sodium arylsulfinates
Wang, Chunjie,Zhang, Hui,Li, Zhiwei,Wang, Ziyun
, p. 639 - 642 (2015/02/02)
Diaryl sulfones derivatives were easily synthesised from aryl tosylates and sodium arylsulfinates in high yields using [Cu(CH3CN)4]PF6 as catalyst. The transformation is efficient, simple and the starting materials are readily available.
