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Professor Carl Redshaw


Iron(III) bromide catalyzed bromination of 2-tert-butylpyrene and corresponding position-dependent aryl-functionalized pyrene derivatives (2014)
Journal Article
Feng, X., Hu, J., Tomiyasu, H., Tao, Z., Redshaw, C., Elsegood, M. R. J., …Yamato, T. (2014). Iron(III) bromide catalyzed bromination of 2-tert-butylpyrene and corresponding position-dependent aryl-functionalized pyrene derivatives. RSC advances, 5(12), 8835-8848. https://doi.org/10.1039/C4RA12216J

The present work probes the bromination mechanism of 2-tert-butylpyrene (1), which regioselectively affords mono-, di-, tri- and tetra-bromopyrenes, by theoretical calculation and detailed experimental methods. The bromine atom may be directed to the... Read More about Iron(III) bromide catalyzed bromination of 2-tert-butylpyrene and corresponding position-dependent aryl-functionalized pyrene derivatives.

Zinc calixarene complexes for the ring opening polymerization of cyclic esters (2014)
Journal Article
Lancaster, S. J., Walton, M. J., Wright, J. A., Elsegood, M. R. J., & Redshaw, C. (2014). Zinc calixarene complexes for the ring opening polymerization of cyclic esters. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(48), 18001-18009 . https://doi.org/10.1039/c4dt02226b

Reaction of Zn(C₆F₅)₂·toluene (two equivalents) with 1,3-dipropoxy-p-tert-butyl-calix[4]arene (L¹H₂) led to the isolation of the complex [{Zn(C₆F₅)}₂L¹] (1), whilst similar use of Zn(Me)₂ resulted in the known complex [{Zn(Me)}₂L¹] (2). Treatment of... Read More about Zinc calixarene complexes for the ring opening polymerization of cyclic esters.

Synthesis and evaluation of a novel ionophore based on a thiacalix[4]arene derivative bearing imidazole units (2014)
Journal Article
Zhao, J. L., Tomiyasu, H., Ni, X., Zeng, X., Elsegood, M. R. J., Redshaw, C., …Yamato, T. (2014). Synthesis and evaluation of a novel ionophore based on a thiacalix[4]arene derivative bearing imidazole units. New journal of chemistry = Nouveau journal de chimie, 38(12), 6041-6049. doi:10.1039/c4nj01099j

O-Alkylation of the flexible thiacalix[4]arene 1 with 2-chloromethyl-1-methyl-1H-imidazole 2 in the presence of Na₂CO₃ or K₂CO₃ afforded mono-O-alkylation product 3 in 29–51% yield, along with recovery of the starting compound. In contrast, the same... Read More about Synthesis and evaluation of a novel ionophore based on a thiacalix[4]arene derivative bearing imidazole units.

Tri- and tetra-dentate imine vanadyl complexes: synthesis, structure and ethylene polymerization/ring opening polymerization capability (2014)
Journal Article
Ma, J., Zhao, K., Walton, M., Wright, J. A., Hughes, D. L., Elsegood, M. R. J., …Redshaw, C. (2014). Tri- and tetra-dentate imine vanadyl complexes: synthesis, structure and ethylene polymerization/ring opening polymerization capability. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(44), 16698-16706. https://doi.org/10.1039/c4dt01448k

Reaction of the ligand 2,4-tert-butyl-6-[(2-methylquinolin-8-ylimino)methyl]phenol (L¹H) with [VOCl₃] in the presence of triethylamine afforded the complex [VOCl₂L¹] (1), whereas use of [VO(OnPr)₃] led to the isolation of [VO₂L¹] (2) or [VO₂L¹]·2/3Me... Read More about Tri- and tetra-dentate imine vanadyl complexes: synthesis, structure and ethylene polymerization/ring opening polymerization capability.

The amidine based colorimetric sensor for Fe³⁺, Fe²⁺, and Cu²⁺ in aqueous medium (2014)
Journal Article
Nandre, J., Patil, S., Patil, P., Sahoo, S., Redshaw, C., Mahulikar, P., & Patil, U. (2014). The amidine based colorimetric sensor for Fe³⁺, Fe²⁺, and Cu²⁺ in aqueous medium. Journal of fluorescence, 24(6), 1563-1570. https://doi.org/10.1007/s10895-014-1438-4

An amidine based chemosensor AM-1 was synthesized and characterized by various spectroscopic (FT-IR, 1H-NMR and mass) data and elemental analyses. Sensor AM-1 exhibited high selectivity and sensitivity towards Fe³⁺, Fe²⁺ and Cu²⁺ in the presence of o... Read More about The amidine based colorimetric sensor for Fe³⁺, Fe²⁺, and Cu²⁺ in aqueous medium.

Positive allosteric binding behavior of pyrene-appended triazole-modified thiacalix[4]arene-based fluorescent receptors (2014)
Journal Article
Tomiyasu, H., Shigyo, N., Ni, X., Zeng, X., Redshaw, C., & Yamato, T. (2014). Positive allosteric binding behavior of pyrene-appended triazole-modified thiacalix[4]arene-based fluorescent receptors. Tetrahedron, 70(43), (7893-7899). doi:10.1016/j.tet.2014.08.068. ISSN 0040-4020

The novel heteroditopic receptors 5a∼c have been synthesized, which bear a thiacalix[4]arene in the 1,3-alternate conformation. Two urea moieties possessing various aryl groups with either electron-donating or -withdrawing groups at their p-positions... Read More about Positive allosteric binding behavior of pyrene-appended triazole-modified thiacalix[4]arene-based fluorescent receptors.

A convenient tandem one-pot synthesis of donor-acceptor-type triphenylene 2,3-dicarboxylic esters from diarylacetylene (2014)
Journal Article
Feng, C., Tian, X., Zhou, J., Xiang, S., Yu, W., Wang, B., …Zhao, K. (2014). A convenient tandem one-pot synthesis of donor-acceptor-type triphenylene 2,3-dicarboxylic esters from diarylacetylene. Organic & biomolecular chemistry, 12(36), 6977-6981. doi:10.1039/c4ob01503g

A tandem one-pot method for the direct synthesis of polysubstituted triphenylene 2,3-dicarboxylic esters with different substitution patterns was developed by enyne metathesis of diarylacetylene, followed by Diels–Alder, aromatization and a cyclizati... Read More about A convenient tandem one-pot synthesis of donor-acceptor-type triphenylene 2,3-dicarboxylic esters from diarylacetylene.

Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: Synthesis, characterization and ROP of ε-caprolactone (2014)
Journal Article
Li, Y., Zhao, K., Feng, C., Elsegood, M. R., Prior, T. J., Sun, X., & Redshaw, C. (2014). Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: Synthesis, characterization and ROP of ε-caprolactone. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(36), 13612-13619. https://doi.org/10.1039/c4dt01936a

By varying the reaction conditions, the reaction of [W(eg)₃] (eg = 1,2-ethanediolato) with p-tert-butylcalix[n]areneHn (n = 6 or 8) in refluxing toluene affords, following work-up, a number of products which have been fully characterized. From the re... Read More about Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: Synthesis, characterization and ROP of ε-caprolactone.

Rhodamine-triazine based probes for Cu²⁺ in aqueous media and living cells (2014)
Journal Article
Zhang, Y., Zeng, X., Mu, L., Chen, Y., Zhang, J., Redshaw, C., & Wei, G. (2014). Rhodamine-triazine based probes for Cu²⁺ in aqueous media and living cells. Sensors and actuators. B, Chemical, 204(December), 24-30. https://doi.org/10.1016/j.snb.2014.06.125

The performance of a number of rhodamine-triazine derivatives(probe R1~R4) which utilize rhodamine as the fluorophore with cyanuric chloride as the molecular platform have been evaluated. Spectroscopic analysis revealed that differing structural subs... Read More about Rhodamine-triazine based probes for Cu²⁺ in aqueous media and living cells.

A reversible and visible colorimetric/fluorescent chemosensor for Al³⁺+ and F⁻ ions with a Large Stoke's shift (2014)
Journal Article
Redshaw, C., Li, J., Mu, L., Wei, G., Zeng, X., & Zhao, Y. (2014). A reversible and visible colorimetric/fluorescent chemosensor for Al³⁺+ and F⁻ ions with a Large Stoke's shift. Sensors and actuators. B, Chemical, 204(December), 450-458. https://doi.org/10.1016/j.snb.2014.07.048

A quinoline-vinyl-dihydroxylphenyl linkage comprising a donor-π-bridge-acceptor structural motif, in which the quinoline serves as an electron-withdrawing core, has been synthesized and used as a fluorescent sensor (2) for the recognition of Al³⁺+ an... Read More about A reversible and visible colorimetric/fluorescent chemosensor for Al³⁺+ and F⁻ ions with a Large Stoke's shift.