In 2019,Research on Chemical Intermediates included an article by Nikpassand, Mohammad; Fekri, Leila Zare; Rahro, Parissa Naddaf. Reference of 4-Iodobenzaldehyde. The article was titled 《Catalyst-free grinding method: a new avenue for synthesis of 6-amino-3-methyl-4-aryl-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile and DFT studies on the mechanistic pathway of this category of compounds》. The information in the text is summarized as follows:
An efficient, one-pot, catalyst-free grinding procedure for synthesis of 6-amino-3-methyl-4-aryl-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles I [X = H, 3-Cl, 4-OMe, etc.] was reported. The condensation of substituted benzaldehydes, 3-amino-5-methylpyrazole and malononitrile according to a three-component reaction was investigated using d. functional theory (DFT) at B3LYP/6-311G level to explore the reaction mechanism. All the routes were studied, the structure of the intermediates was optimized and all the resp. transition states were found. The results of the calculations showed that the proposed mechanism relies on four intermediates. The results came from multiple reactions, including the reaction of 4-Iodobenzaldehyde(cas: 15164-44-0Reference of 4-Iodobenzaldehyde)
4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.Reference of 4-Iodobenzaldehyde
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com