Alkylation of [Pt-2(-S)(2)(PPh3)(4)] with boronic acid derivatives

作者：Ujam Oguejiofo T^*; Offie Ogochukwu E; Ukoha Pius O; Oliver Allen G; Ume Joshua I; Stoddard Rhonda L; McIndoe J Scott

来源：Journal of Coordination Chemistry, 2016, 69(19): 2807-2818.

DOI：10.1080/00958972.2016.1226503

• Real-time analysis
• mass spectrometry
• platinum complexes
• alkylation
• boronic acid

The reactivity of the metalloligand [Pt-2(-S)(2)(PPh3)(4)] with the boron-functionalized alkylating agents BrCH2(C6H4)B(OR)(2) (R=H or C(CH3)(2)) was investigated by electrospray ionization mass spectrometry (ESI-MS) in real time using pressurized sample infusion (PSI). The macroscopic reaction of [Pt-2(-S)(2)(PPh3)(4)] with one mole equivalent of alkylating agents BrCH2(C6H4)B{OC(CH3)(2)}(2) and BrCH2(C6H4)B(OH)(2) gave the dinuclear monocationic -sulfide thiolate complexes [Pt-2(-S){-SCH2(C6H4)B{OC(CH3)(2)}(2)}(PPh3)(4)](+) and [Pt-2(-S){-S+CH2(C6H4)B(OH)(O-)}(PPh3)(4)]. The products were isolated as the [PF6](-) salt and zwitterion, respectively, and fully characterized by ESI-MS, IR, H-1 and P-31 NMR spectroscopy, and single-crystal X-ray structure determinations.

• 出版日期2016