Bent-core dimers with top-to-bottom linkage between central units

Horčic, Martin; Svoboda, Jiřı́; Novotná, Vladimı́ra; Pociecha, Damian; Górecka, Ewa

doi:10.1039/c8ra04108c

Cited by 6 publications

(1 citation statement)

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“…We attempted to perform its substitution to bromine atom by means of Appel reaction, [27] which typically proceeds with high yields. [28] Unfortunately, the interaction of 6 with excess of CBr 4 and Ph 3 P provided 7a with vanishing yield less than 3 % and we were unable to isolate it in pure form. Such peculiarity could be attributed to the presence of imidazole NH-fragment, which could be competitively deprotonated with CBr 3 anion in the key step of the Appel reaction.…”

Section: Ammonium Imidazoporphyrin For Hybrid Materialsmentioning

confidence: 87%

Ammonium Imidazoporphyrin – a Newborn in a Family of Porphyrins for Hybrid Materials

Nikulin¹,

Birin²,

Gorbunova³

et al. 2021

MHC

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The efficient application of the trialkylammonium group as an anchor for grafting of porphyrin to silica is demonstrated. A representative of a new series of functional porphyrins for the development of hybrid materials, namely imidazoporphyrin bearing peripheral triethylammonium unit, is synthesized. The optimal synthetic sequence towards the target type of functional derivatives is revealed. The grafting of the prepared Ni(II) porphyrin to the surface of the commercially available silica is performed and the stability of the obtained hybrid material is investigated. The loading of the porphyrin in the prepared material is evaluated as ca. 13 % by weight. The reported synthetic strategy is expected to form the basis for the development of new type of porphyrin-based hybrid materials.

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Section: Ammonium Imidazoporphyrin For Hybrid Materialsmentioning

confidence: 87%