In 2018,Gu, Xuesong; Xie, Shubo; Chen, Qiang; Chen, Shufeng; Zhao, Haiying; Bian, Zhanxi published 《Anti-migration and burning rate catalytic performances of novel ferrocene-based porphyrins and their transition-metal complexes》.New Journal of Chemistry published the findings.Product Details of 26153-38-8 The information in the text is summarized as follows:
Two series of novel ferrocene-based porphyrins and their transition metal (Zn, Co, Ni, and Cu) complexes were synthesized and characterized. One has ferrocene on the skirt of meso-tetraphenylporphyrin (TPP) via long chain alkoxy groups (HP1 and HP2); the other has a close connection of TPP and ferrocene containing long chain alkyl groups by ester linkage (HP3). Their UV-visible absorption spectra, fluorescence spectra, thermal stability and electrochem. properties were studied. They were applied for the 1st time as burning rate catalysts (BRCs) in a simulative solid propellant to overcome the migration problem. Their catalytic effects on the thermal degradation of ammonium perchlorate (AP) were evaluated by thermogravimetric and DSC techniques, and the catalytic effects of free porphyrin, Zn(II) porphyrin and Ni(II) porphyrin were similar to that of catocene. While Cu(II) and Co(II) porphyrins exhibited higher catalytic effects than catocene, the Co(II) complexes lowered the thermal decomposition temperature of AP more dramatically compared with Cu(II) complexes. What’s more, these compounds displayed nonmigratory ability in the migration test. Therefore, the novel ferrocene-based porphyrin derivatives are nonmigratory BRCs with high catalytic efficiency for composite solid propellants and have potential applications in aerospace. The experimental part of the paper was very detailed, including the reaction process of 3,5-Dihydroxybenzaldehyde(cas: 26153-38-8Product Details of 26153-38-8)
3,5-Dihydroxybenzaldehyde(cas: 26153-38-8) is used as a building block in the synthesis of more complex structures. It is also used in the synthesis of terbutaline, which is an important bronchodilator.Product Details of 26153-38-8
Referemce:
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Alcohols – Chemistry LibreTexts