Dithymoquinone

Smith, Lee Irvin; Tess, Roy W.

doi:10.1021/ja01236a036

Cited by 23 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The general oxidation route of phenols is for the hydroxyl group to become a carbonyl group. There are no reports in the chemical literature mentioning the identity of the photochemical oxidation product of thymol, but Bargellini obtained thymoquinone by oxidation with potassium dichromate and sulphuric acid [2], Cahn and Richter by oxidation with manganese dioxide [3] and EI-Dakhakhuy by oxidation with hydrogen peroxide [4].…”

Section: Resultsmentioning

confidence: 99%

The yellowing of thymol in the display of prints

Daniels¹,

Boyd²

1986

Studies in Conservation

View full text Add to dashboard Cite

Framed and glazed prints have been found to yellow rapidly when on exhibition. It was found that the frames all contained the fungicide thymol. Experimental work has shown that the discoloration is caused by photoxidation. The discoloration was present in the paper and in the polymethyl methacrylate glazing. Mass spectroscopy has revealed the presence of a polymer of thymol; there was no evidence for the expected oxidation products.

show abstract

Section: Resultsmentioning

confidence: 99%

The yellowing of thymol in the display of prints

Daniels¹,

Boyd²

1986

Studies in Conservation

View full text Add to dashboard Cite

show abstract

“…Dithymoquinone was prepared from thymoquinone by a photodimerization reaction according to the procedure previously described (Smith & Tess, 1944). The reaction was terminated when no thymoquinone was detectable by thin-layer-chromatography analysis.…”

Section: Materials and Reagentsmentioning

confidence: 99%

Fatty acid profile, thymoquinone content, oxidative stability, and antioxidant properties of cold-pressed black cumin seed oils

Lutterodt

Luther

Slavin

et al. 2010

LWT - Food Science and Technology

162

114

View full text Add to dashboard Cite

“…2906/2002, Eng. Mohamed Dorra Co., Alexandria, Egypt); thymoquinone (TQ) and thymol (THY) (TCI Co., Ltd., Tokyo, Japan); dithymoquinone (DTQ) and thymohydroquinone (THQ) (were prepared from TQ as described by Smith and Tess (1944) [20] and El-Dakhakhny (1963) [21], respectively and their purity and identity are confirmed by nuclear magnetic resonance spectroscopy and melting point); diphenyl sulfone (DPS, TCI); methanol (Wako Pure Chemical Industries, Ltd., Osaka, Japan); 2-propanol (Nacalai Tesque, Inc., Kyoto, Japan); bovine serum albumin (BSA, Millipore, Kankakee, IL, USA); Block-Ace (Yukijirushi Co., Sapporo, Japan); Türk solution (Wako Pure Chemical Industries); sodium pentobarbitone (Abbott Lab., Chicago, IL, USA); disodium ethylenediaminetetraacetic acid (EDTA-2Na) and acetylcholine chloride (Ach) (Nacalai Tesque); Diff-Quick solution (Sysmex, Kobe, Japan); pancuronium bromide (Sigma, St. Louis, MO, USA); monoclonal anti-dinitrophenol (DNP) IgE antibody (monoclonal anti-DNP IgE, clone SPE-7, Sigma); peroxidase-labeled polyclonal antimouse IgE goat IgG antibody (Nordic immunological laboratories, Tilburg, Netherland); monoclonal rat anti-mouse IgE antibody (LO-ME-3, Serotec Co., Ltd., Oxford, UK); polyclonal goat anti-mouse IgG1 antibody (STAR81, Serotec); monoclonal rat anti-mouse IgG2a antibody (LO-MG2a-7, Serotec); peroxidase-conjugated streptavidin (Dakopatts a/s, Glostrup, Denmark).…”

Section: Reagentsmentioning

confidence: 99%