|Title||Mesoporous Silica-Supported Amidozirconium-Catalyzed Carbonyl Hydroboration|
|Publication Type||Journal Article|
|Year of Publication||2015|
|Authors||Eedugurala, N, Wang, ZR, Chaudhary, U, Nelson, N, Kandel, K, Kobayashi, T, Slowing, II, Pruski, M, Sadow, AD|
|Type of Article||Article|
|Keywords||activation, asymmetric hydrogenation, carbonyl hydroboration, chiral titanocene catalyst, dynamic nuclear-polarization, hydrosilylation, interfacial catalysis, mesoporous silica, metathesis, organoyttrium complex, selective, sigma-bond, single-site catalysts, solid-state nmr, surface organometallic chemistry, zirconium hydride, zirconium hydrides|
H/H-2 and HB SSNMR and infrared spectroscopy and through its reactivity with D-2. The zirconium hydride material or the zirconium amide precursor Zr(NMe2)(5)@MSN catalyzes the selective hydroboration of aldehydes and ketones with HBpin in the presence of functional groups that are often reduced under hydroboration conditions or are sensitive to metal hydrides, including olefins, alkynes, nitro groups, halides, and ethers. Remarkably, this catalytic material may be recycled without loss of activity at least eight times, and air-exposed materials are catalytically active. Thus, these supported zirconium centers are robust catalytic sites for carbonyl reduction and that surface-supported, catalytically reactive zirconium hydride may be generated from zirconium-amide or zirconium alkoxide sites.
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