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Thiopyrans and Their Benzo Derivatives

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The article was published on 2020-01-01. It has received 1 citations till now. The article focuses on the topics: Ring (chemistry) & Section (typography).

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Thia-Prins Bicyclization Approach for the Stereoselective Synthesis of Dithia- and Azathia-Bicycles

TL;DR: A novel thia-Prins bicyclization approach has been developed for the first time for the synthesis of hexahydro-2H-thieno[3,2-c]thiopyran derivatives from the coupling of homoallylic mercaptans such as hex-3-ene-1,6-dithiol with various aldehydes using 10 mol % InBr3 in dichloromethane with high selectivity.
Journal ArticleDOI

A new domino Knoevenagel-hetero-Diels–Alder reaction: an efficient catalyst-free synthesis of novel thiochromone-annulated thiopyranocoumarin derivatives in aqueous medium

TL;DR: An efficient catalyst-free synthesis of novel pentacyclic thiochromone-annulated thiopyranocoumarin derivatives was achieved via domino Knoevenagel-hetero-Diels-Alder reaction.
Journal ArticleDOI

Design and synthesis of a novel ring-expanded 4′-thio-apio-nucleoside derivatives

TL;DR: In this article, the synthesis of a ringexpanded 4′-thio- apio-nucleoside derivative 4, designed to serve as a potential anti-HIV agent, is described.
Journal ArticleDOI

Nucleophilic β-Oniovinylation: Concept, Mechanism, Scope, and Applications

TL;DR: A series of Michael systems with donor functions in the beta-position is easily synthesized, which represent a virtually unexplored class of compounds and represent a source for useful further transformations.
Journal ArticleDOI

Secondary–secondary diamine catalysts for the enantioselective Michael addition of cyclic ketones to nitroalkenes

TL;DR: Secondary secondary diamines derived from S-proline are efficient catalysts for the ketone-nitroalkene Michael addition reaction as mentioned in this paper, and the stereoselectivity of the Michael addition is dependant on the pKa of the N-substituted aminomethyl pendant in these diamines.