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Photochemical Reactions as a Useful and Easy to Implement and Scale-Up, New Method for the Synthesis of Chemicals
Published in Ahindra Nag, Greener Synthesis of Organic Compounds, Drugs and Natural Products, 2022
The successes of microreactors in thermal processes have been more than duplicated in photochemistry. Mini- and micro(flow) reactors allow a simpler control of irradiation time and a more efficient penetration of light in the solution. In the case of flow reactors, scalability would be much easier as it would imply the serial coupling of multiple reactors, without changing the optimized conditions for each one of them. In addition to these technical considerations, it should be noted that on the laboratory scale, huge advancements in the field of photochemistry have been made. Novel and once-elusive transformations can now be achieved through photoredox catalysis. The use of the appropriate photocatalysts allows, in principle, to extend photochemical processes to non-absorbing starting materials, broadening the scope of the photochemical synthetic aspects.
Porous Polymers in Photocatalysis
Published in Inamuddin, Mohd Imran Ahamed, Rajender Boddula, Porous Polymer Science and Applications, 2022
Mehdi Mogharabi-Manzari, Shahla Rezaei, Zahra Pakdin-Parizi, Masoud Salehipour, Ali Motaharian
Xanthene dyes (such as Rose Bengal, Fluorescein, and Eosin Y) with large π-conjugated systems have been applied as suitable alternatives to transition metal complexes in photoredox catalysis due to their unique properties such as less expense and toxicity compared to conventional catalysts and good visible light absorption capacity. Therefore, xanthene-containing conjugated porous polymers might be applied to improve the visible light absorption of the photocatalysts (Liu et al., 2020).
An overview of synthetic methodologies of organometallic and coordination compounds of gold
Published in Journal of Coordination Chemistry, 2020
Khair-Un-Nisa Sheikh, Hira Amin, Rosenani A Haque, Aman Shah Abdul Majid, Muhammad Yaseen, Muhammad Adnan Iqbal
Recent advances on gold complexes published in 2020 mainly involved the aspects of chemistry of gold (I, III) complexes with organic ligands, deposition process, thermal properties, MOCVD, ALD processes and photoredox catalysts [16]. Complexes of copper have been described that play a major role as photoredox catalysts activated by visible light [17]. Similarly, another comprehensive review on biological prospective of gold (I, III)/silver(I)/palladium(II) complexes with N-heterocyclic carbenes has been published in 2019 [9]. A generalized review article focused on medicinal aspects of organometallic compounds was published in 2018 in which gold and its medicinal applications were a small part of the article [18]. In 2018, another generalized review article on synthesis, structural aspects and applications of metal complexes of mesoionic ligands was reported where gold metal complexes were again a part of the review [19]. Similarly, another review specifically on Au-(I, II, III) complexes was published in 2017 describing the stability, chemical reactivity, reaction kinetics and medicinal application of gold complexes [20]. In the current article, we focus on the techniques in synthesis of organometallic compounds of gold where gold formed organometallic bonds with various elements in ligands like “C, P, S, C and N; C and O; N and S; P and C; PS and C and S.” The review is comprehensive and covers the data through 2011 to 2019.