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Synthesis 1985; 1985(11): 1055-1057
DOI: 10.1055/s-1985-31426
DOI: 10.1055/s-1985-31426
paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.
Oxokohlenstoffe und verwandte Verbindungen; 10. Mitteilung. Pseudooxokohlenstoff-Betaine der C4-Reihe mit einer Cyanaminobzw. einer Sulfonylamino-Funktion durch Dreikomponenten-Reaktion
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Publikationsverlauf
Publikationsdatum:
27. September 2002 (online)
Oxocarbons and Related Compounds; Part 10. Pseudooxocarbon-Betaines of the C4-Series with a Cyanamino Group or a Sulfonylamino Group by Three-Component-Reaction Reaction of squaric dichloride (7) with pyridine and cyanamide or a sulfonamide leads to the cyanamino-pyridinium-betaine 10a and the sulfonylaminopyridinium-betaines 10c-f, respectively. In the same way squaric dichloride (7) reacts with triphenylphosphine and cyanamide to give the cyanaminotriphenylphosphonium-betaine 10b.