Synthetic Route of 92-70-6, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 92-70-6, Name is 3-Hydroxy-2-naphthoic acid, SMILES is C1=C2C(=CC(=C1C(O)=O)O)C=CC=C2, belongs to naphthyridines compound. In a article, author is Wang Wen-Zhen, introduce new discover of the category.
A Defective Linear Pentachromium Complex for the Enhanced Catalysis of the Cycloaddition of CO2 with Propylene Oxide
Based on the ligand (2,7-bis(alpha-pyrimidylamino)-1,8-naphthyridine (H(2)bpmany)), a linear pentachromium complex [Cr-5(mu(5)-bpmany)(4)Cl-2]PF6(1, mu(5)-bpmany = 2,7-bis(a-pyrimidylamino)-1,8-naphthyridine) was synthesized. The crystal structure of compound 1 has been characterized by X-ray crystallography. Interestingly, one metal atom in the center is missing in this linear chain, leading to the defective pentachromium metal string structure which is similar with the reported complex [Cr-5(mu(5)-dpznda)(4)Cl-2] (2, dpznda = N-2,N-7-di(pyrazin-2-yl)-1,8-naphthyridine-2,7-diamine). The central Cr(III) ion of 1 is eight-coordinated and is also rare in the chromium complex. The reaction of carbon dioxide with propylene oxide that generates propylene carbonate (PC) when catalyzed by [Cr-5(mu(5)-bpmany)(4)Cl-2]PF6 was investigated. Different reaction conditions including temperature and pressure were studied to optimize the reaction conditions.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem