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Phase Transfer Catalysis in the Hofmann Carbylamine Reaction
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This article is published in Angewandte Chemie.The article was published on 1972-06-01. It has received 154 citations till now. The article focuses on the topics: Catalysis & Phase (matter).read more
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Isocyanides in the Synthesis of Nitrogen Heterocycles
TL;DR: Methods starting from isocyanides often have distinct advantages over alternative approaches to the same heterocycles because of their enhanced convergence, the great simplicity of most of the operations with them, and the great variety of isOCyanides readily available for use.
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Sustainable routes to polyurethane precursors
TL;DR: In this paper, the authors provide an overview of classic as well as modern and more sustainable routes towards polyurethanes and their precursors and foster the discussion with the final goal to meet such a sustainable production.
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From Isocyanides via Four-Component Condensations to Antibiotic Syntheses†‡
TL;DR: The four-component condensation of amines and carbonyl compounds with isocyanides11 and suitable acid components (water, thiosulfuric acid, hydrogen selenide, hydrogen azide, cyanic acid, thiocyanic acid and carboxylic acids, methyl hydrogen carbonate) to form α-amino acid derivatives was discovered in 1959 as discussed by the authors.
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Two-phase reactions in the chemistry of carbanions and halocarbenes. A useful tool in organic synthesis
TL;DR: In this paper, the first common step of all these reactions, namely proton abstraction with the formation of a carbanion quaternary ammonium cation ion-pair, occurs on the phase boundary.
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Phase-Transfer Catalyzed Two-Phase Reactions in Preparative Organic Chemistry
TL;DR: Quaternary ammonium and phosphonium salts catalyze reactions between substances located in an aqueous and an organic phase as mentioned in this paper, which simplifies and accelerates numerous reactions traditionally conducted in nonaqueous media.
References
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Phase – transfer catalysis. i. heteroge neous reactions involving anion transfer by quaternary ammonium and phosphonium salts
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Neuere Methoden der präparativen organischen Chemie IV. Isonitril‐Synthesen
TL;DR: In der Regel ist dies nach Ausbeute und Arbeitsaufwand die gunstigste Methode, vor allem fur die Darstellung groserer Mengen (> 1 Mol) von Isonitrilen as mentioned in this paper.
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