An organoantimony complex with intramolecular N→Sb coordination as effective and recyclable catalyst for the allylation of aldehydes with tetraallyltin
2017
Tan, Nianyuan | Nie, Tong | Au, Chak-Tong | Lan, Donghui | Wu, Shuisheng | Yi, Bing
An air-stable hypervalent organoantimony (III) triflate complex (PhN(CH2C6H4)2SbOSO2CF3) having intramolecular N→Sb coordination was synthesized and characterized by techniques such as 1H NMR, 13C NMR, TG-DSC, X-ray diffraction and elemental analysis. The complex shows relatively strong Lewis acidity (0.8<Ho≤3.3). It exhibits excellent catalytic performance towards the allylation of aldehydes with tetraallyltin at room temperature, and shows good thermal stability and recyclability. The catalytic system enables convenient and efficient synthesis of homoallylic alcohols.
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