Synthesis 1989; 1989(1): 43-45
DOI: 10.1055/s-1989-27144
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Convenient Synthesis of 1,1,1-Trifluoro-4,5-diaza-2,4-alkadienes and 1-Aryl-3,3,3- trifluoro-1-propanones

Yasuhiro Kamitori* , Masaru Hojo, Ryōichi Masuda, Seiji Ohara, Yoshihiko Kawamura, Toshiaki Ebisu
  • *Department of Industrial Chemistry, Faculty of Engineering, Kobe University, Kobe 657, Japan
Further Information

Publication History

Publication Date:
27 September 2002 (online)

Several 3-aryl-1,1,1-trifluoro-4,5-diaza-2,4-alkadienes 3 were synthesized in good yields from arenecarbaldehyde dimethylhydrazones 1 or its trifluoroacetylated derivatives 2 by reaction with an excess of trifluoroacetic anhydride in pyridine. Acid hydrolysis of 3 afforded 1-aryl-3,3,3-trifluoro-1-propanones 4 in high yields.

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