Farbstoffstudien in der Thionaphtenreihe

Mayer, Fritz; Mombour, Alfred; Lassmann, Willy; Werner, W; Landmann, Paul; Schneider, Ernst

doi:10.1002/jlac.19314880115

Cited by 26 publications

(2 citation statements)

References 6 publications

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“…44 : mp 111 • C), which could be used in the next step without further purification. IR: 1690 (C O 45 (3.5 g, 0.017 mol) was dissolved in AcOH (100%, 120 mL). A solution of Br 2 (5.3 g, 0.033 mol) in AcOH (10 mL) was added.…”

Section: Preparationsmentioning

confidence: 99%

Preparation of New Dialkyl Benzene-, Biphenyl-, and Naphthalene-bis(α-oxoethanedithioates)

Voß

Sarafidis

Sawluk

et al. 2010

Phosphorus, Sulfur, and Silicon and the Related Elements

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Novel arene-bis-and -tris(α-oxoethanedithioate) esters of the benzene, the biphenyl, and, in particular, the naphthalene series were prepared by reaction of the corresponding diazoacetyl or bromoacetyl derivatives with elemental sulfur in the presence of triethylamine in dry DMF, and subsequent direct alkylation of the produced dithiocarboxylate anions. The thiolation reaction of the diazoketones was significantly promoted by the addition of anhydrous calcium chloride (calcium chloride-activated thiolation, or CAT). Certain carbonyl-activated methylene and methyl compounds exhibiting no bromo or diazo substituents could be also transformed into dithioesters by the CAT reaction. The structure of three dithioesters was corroborated by X-ray structural analyses.

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Section: Preparationsmentioning

confidence: 99%

Preparation of New Dialkyl Benzene-, Biphenyl-, and Naphthalene-bis(α-oxoethanedithioates)

Voß

Sarafidis

Sawluk

et al. 2010

Phosphorus, Sulfur, and Silicon and the Related Elements

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show abstract

“…Schonberg, Petersen, and Kaltschnitt (2) reported the synthesis of thianaphthene-2-carboxylic acid by reacting thianaphthene with powdered sodium in anhydrous ether, followed by carbonation. Mayer, et al (3), described the synthesis of thianaphthene-2-carboxylic acid from omercaptobenzaldehyde and chloroacetic acid. I n 1950 Shirley and Cameron (4) described the synthesis of the 2-carboxylic acid by metalation of thianaphthene with n-butyllithium to form 2-thianaphthenyllithium which was then converted into the desired acid by carbonation and acidification.…”

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confidence: 99%