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α-Oxo ketene dithioacetals and related compounds: versatile three-carbon synthons
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A novel solution- and solid-phase approach to 2,4,5-tri- and 2,4,5,6-tetrasubstituted pyrimidines and their conversion into condensed heterocycles
TL;DR: In this paper, a novel general synthesis of 2,4,5-tri-and 2, 4,5,6-tetrasubstituted pyrimidines by condensation of thiouronium salts of type 3 with (ethoxymethylidene)malononitrile (4) and [bis(methylthio)methylidene]malononiitrile(6), respectively, was first established in solution and successfully transferred onto solid support by using the polymer-bound pyrimidine salt.
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Unexpected Hydrobromic Acid-Catalyzed C ? C Bond-Forming Reactions and Facile Synthesis of Coumarins and Benzofurans Based on Ketene Dithioacetals
TL;DR: A new reactive species, a sulfur-stabilized carbonium ylide, formed depending on the nature of the counterion, and this was proposed as the key intermediate in the unique catalysis of hydrobromic acid.
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Synthesis of heterocyclic compounds using carbon disulfide and their products
TL;DR: In this paper, a review described developments in the synthesis of heterocyclic compounds using carbon disulfide and their products and discussed the main challenges involved in the process of synthesizing these compounds.
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Vilsmeier–Haack reactions of α-hydroxyketenedithioacetals: a facile synthesis of substituted pyridines
Ajith Dain Thomas,C. V. Asokan +1 more
TL;DR: In this article, the reaction of α-hydroxyketenedithioacetals, generated by the 1,2-addition of methyl Grignard reagent to α-oxoketenedithioxacetal, with the Vilsmeier reagent was investigated.
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Aerobic, Cu-catalyzed desulfitative C–C bond-forming reaction of ketene dithioacetals/vinylogous thioesters and arylboronic acids
TL;DR: A new Cu-catalyzed thioorganic-boronic acid desulfitative C-C bond-forming reaction involving ketene dithioacetals/ vinylogous thioesters is reported to proceed without the assistance of ligating S-pendant.
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The chemistry of the thiol group.
TL;DR: The chemistry of the thiol group is studied in detail in order to establish a clear picture of the chiral stationary phase and its role in the polyene-like structure.
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Umpolung of the Reactivity of Carbonyl Compounds Through Sulfur-Containing Reagents
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Carbonsäurederivate, V. Substituierte Dithiocarbonsäuren und Ketenmercaptale
Rudolf Gompper,Werner Töpfl +1 more
TL;DR: In this paper, the herstellung von Dithiocarbonsauren aus CH-aciden Verbindungen und Schwefelkohlenstoff wird beschrieben.
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New class of mixed cuprate(I) reagents, lithium hetero(alkyl) cuprate(I), which allow selective alkyl group transfer
Journal ArticleDOI
Ketenderivate, XII. Beiträge zur Chemie der Dithiocarbonsäureester und Ketenmercaptale
Rudolf Gompper,Hartmann Schaefer +1 more
TL;DR: In this article, the Struktur des Benzoyl-dithioessaure-methylesters wird diskutiert und seine Umsetzung with Aminen beschrieben.