Abstract
The zinc formate compound (terpy)Zn(O2CH)2 is obtained via the reaction of Zn(O2CH)2 with 2,2′:6′,2″-terpyridine (terpy) and has been structurally characterized by X-ray diffraction as possessing formate ligands that coordinate via a κ1-monodentate coordination mode, which is in accord with IR spectroscopic studies. In terms of reactivity, (terpy)Zn(O2CH)2 participates in catalytic transformations involving CO2 and carbonyl compounds via hydrosilylation and hydroboration reactions. For example, (terpy)Zn(O2CH)2 achieves hydroboration of Me2CO and Ph2CO by HBpin to afford R2C(H)OBpin, and triple insertion of Ph2CO, PhC(O)Me, Me2CO and PhCHO into the Si–H bonds of PhSiH3 to afford PhSi[OCH(R)R’]3. In addition, CO2 also undergoes hydroboration and hydrosilylation by HBpin and (MeO)3SiH in the presence of (terpy)Zn(O2CH)2 to afford HCO2Bpin and HCO2Si(OMe)3, respectively.
Published Version
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