Zur Reaktion von Phenazon und lithiiertem Phenazon mit Aryl-Carbonyl-Derivaten

Translated title of the contribution: On the reaction of phenazone and lithiated phenazone with aryl-carbonyl derivatives

Eyup Akgün, Ulf Pindur

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Some new experimental results are described on the acid catalysed reaction of the 4-Pyrazoline-3-on (1a) with aromatic aldehydes leading to the cationic derivatives 4 and 5. 4-Pyrazoline-3-on-lithium (1b), synthesised for the first time, gives in good yield with 4-dimethylaminobenzaldehyde under mild condition the cyanine 2b and with benzophenone the pyrazolyl-diphenylmethane dye 8.

Translated title of the contributionOn the reaction of phenazone and lithiated phenazone with aryl-carbonyl derivatives
Original languageGerman
Pages (from-to)197-203
Number of pages7
JournalMonatshefte für Chemie Chemical Monthly
Volume115
Issue number2
DOIs
StatePublished - Feb 1 1984

Keywords

  • Dipyrazolylmethanes
  • Pyrazolyl cyanine dyes

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