J
John D. Hepworth
Researcher at University of Huddersfield
Publications - 150
Citations - 1374
John D. Hepworth is an academic researcher from University of Huddersfield. The author has contributed to research in topics: Ring (chemistry) & Trifluoromethyl. The author has an hindex of 20, co-authored 150 publications receiving 1318 citations. Previous affiliations of John D. Hepworth include University of Leeds & University of Central Lancashire.
Papers
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Journal ArticleDOI
Solid-state fluorescent photophysics of some 2-substituted benzothiazoles
Kevin Anthony,Robert G. Brown,John D. Hepworth,Kevin W. Hodgson,Bernadette May,Michael A. West +5 more
TL;DR: The solid-state fluorescence properties of a series of benzothiazoles with phenyl, naphthalene, and coumarin moieties substituted at the 2-position have been investigated in this paper.
Patent
Photochromic naphthopyran compounds
TL;DR: A naphthopyran compound of general formula (I) is defined in this article as a group of the formula -NR2R3 wherein each of R2 and R3, which may be the same or different, independently represents an alkyl, alkenyl, carbocyclic or heterocyclIC group, or R4 and R5 taken together with the carbon atom to which they are attached form a carbocycric ring or a heterocycic ring, and R6 represents a hydrogen atom or a substituent selected from
Journal ArticleDOI
Synthesis and photochromic properties of some fluorine-containing naphthopyrans
Christopher D. Gabbutt,Thomas Gelbrich,John D. Hepworth,B. Mark Heron,Michael B. Hursthouse,Steven M. Partington +5 more
TL;DR: In this article, a series of novel naphthopyrans containing fluorine substituents has been prepared and their behaviour following irradiation with UV light has been investigated, and the spectral properties of the resulting coloured naphthalene-based dienones are discussed.
Journal ArticleDOI
Direct aromatic tert-butylation during the synthesis of thiochroman-4-ones
TL;DR: The synthesis of thiochroman-4-ones from thiophenols and 3-methylbut-2-enoic acid effected by methane sulphonic acid is accompanied by tert-butylation of the aromatic ring.