A facile and convenient synthesis of 5-trifluoromethyl-4-pyridazinones from aldehyde dialkylhydrazones

Autor: Toshiaki Ikemura, Ryōichi Masuda, Yasuhiro Kamitori, Yoshiko Mori, Masaru Hojo
Rok vydání: 1993
Předmět:
Zdroj: Tetrahedron Letters. 34:5135-5138
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)60696-2
Popis: Several 5-trifluoromethyl-4-pyridazinones were conveniently synthesized by silica gel-mediated cyclization reaction of 1,1,1,2,2-pentafluoroalkan-3,4-dione 4-dialkylhydrazones prepared from aldehyde dialkylhydrazones and pentafluoropropionic anhydride.
Databáze: OpenAIRE