Synthesis of a Base-Stabilized Silicon(I)–Iron(II) Complex for Hydroboration of Carbonyl Compounds
Year: 2018
Type: article
Abstract: The reaction of the amidinatosilicon(I) dimer [LSi:] 2 ( 1; L = PhC(N t Bu) 2 ) with FeBr 2 in tetrahydrofuran (THF) at ambient temperature afforded the silicon(I)–iron(II) dimer [LSi(FeBr 2 ·THF)] 2 ( 2 ) after 40 h. Compound 2 can catalyze hydroboration of aliphatic and aromatic ketone compounds with HBpin in the absence of any strong reducing agent. Mechanistic studies show that complex 2 reacts with ketone compounds to form a zwitterionic intermediate in the first step of catalysis. Subsequent reaction with HBpin affords the corresponding boron esters and then regenerates complex 2 .
Source: Inorganic Chemistry
Authors: Sabrina Khoo, Jiajia Cao, Fiona Ng, Cheuk-Wai So
Institution: Nanyang Technological University
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2892848588