1968
DOI: 10.1002/ardp.19683011202
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Aminomethinylierung im System des Phenylacetonitrils

Abstract: Die bei dem nucleophilen Eingriff von Phenylacetonitril (V) und deeaen Derivaten, wie IX, in daa s-Triazin (I) intermediiir gebildeten Aminomethinylienrngeprodukte

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1969
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Cited by 16 publications
(3 citation statements)
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“…The presence of the C-phenyl group in (1) instead of the C-methyl group in (2) has the same effect, since the delocalized aromatic z-electron system of the phenyl group interacts with the vacant p-orbital of the carbene carbon, whose electron deficiency can thus be more effectively lowered than by the methyl group, which only acts inductively[31. Similarly, a dependence between degree of shielding and nature of heteroatom is observed in compounds (3), ( 4 ) , and ( 5 ) . The less electronegative nitrogen in ( 5 ) clearly confers more negative charge on the carbene carbon than does the more strongly electronegative oxygen in (3).…”
mentioning
confidence: 74%
“…The presence of the C-phenyl group in (1) instead of the C-methyl group in (2) has the same effect, since the delocalized aromatic z-electron system of the phenyl group interacts with the vacant p-orbital of the carbene carbon, whose electron deficiency can thus be more effectively lowered than by the methyl group, which only acts inductively[31. Similarly, a dependence between degree of shielding and nature of heteroatom is observed in compounds (3), ( 4 ) , and ( 5 ) . The less electronegative nitrogen in ( 5 ) clearly confers more negative charge on the carbene carbon than does the more strongly electronegative oxygen in (3).…”
mentioning
confidence: 74%
“…Unter Einbeziehung von l-(Alkylphenyl)-2-pyrazolin-5-onen in unsere Untersuchungen erschien es sinnvoll, an 1-(2-Ethylphenyl)-3-methy1-2-pyrazolin-5-on (2) die Umsetzungsbedingungen festzulegen. Hierbei zeigte sich, daB bereits bei Raumtemperatur zwischen 1 und 2 Umsetzung unter Bildung von 4-Aminomethylen-l-(2-ethylphenyl)-3-methyl-2-pyrazolin-5-on (4)…”
unclassified
“…Reaktionen aliphatischer Aldehyde scheinen noch sehr wenig untersucht zu sein. So gab Heptanal beim Erhitzen rnit (NH4)2S, und Pyridin im Bombenrohr n-Heptansaureamid in 46% Ausbeute [3] (4)…”
unclassified