아세트산 팔라듐 (II)

용도아세트산 팔라듐 (II)는 삼량체 구조를 가지며, 대칭성은 대략 D3h이다. 이 구조에서 각 팔라듐 원자는 아세트산 이중 결합을 통해 다른 두 팔라듐 원자와 연결되어 있다. 주로 산화, 커플링, 아미네이션 및 치환 반응과 같은 반응 체계에서 촉매로 사용된다. OLED 소재나 의약 활성 분자 합성에 적합하다.

용도Palladium (II) Acetate Trimer is used in Suzuki-Miyaura cross-coupling reactions and a catalyst for intramolecular coupling. It also serves to catalyze the chemoselective reduction of nitroarenes.

일반 설명Palladium(II) acetate is a homogenous oxidation catalyst. It participates in the activation of alkenic and aromatic compounds towards oxidative inter- and intramolecular nucleophilic reactions. Crystals of palladium(II) acetate have a trimeric structure, having symmetry D3h. Each of the palladium atoms in the crystals are joined to the other two by double acetate bridges. Microencapsulation of palladium(II) acetate in polyurea affords polyurea-encapsulated palladium(II) acetate. It is a versatile heterogeneous catalyst for various phosphine-free cross-coupling reactions. It participates as catalyst in the Heck coupling reaction of pthalides with different alkenes.

The synthesis of palladium acetate was first reported by Wilkinson et al.,where glacial acetic acid containing palladium powder is heated at reflux with a minimal amount of nitric acid until the generation of brown NOx fumes ceases. Although this is a relatively old method, it is still the most commercially employed route for the synthesis of palladium acetate, considering the process economics. Palladium (II) Acetate can be synthesized in two steps from palladium sponge via the intermediate dinitrate by first combining it with hot glacial acetic acid and nitric acid:Pd + 2 HNO3 → Pd(NO3)2 + H2Pd(NO3)2 + 2 CH3COOH → Pd(O2CCH3)2 + 2 HNO3