23253-50-1Relevant academic research and scientific papers
Generation of an 4-Isoxazolyl Anion Species: Facile Access to Multifunctionalized Isoxazoles
Morita, Taiki,Fuse, Shinichiro,Nakamura, Hiroyuki
, p. 13580 - 13584 (2016/10/21)
A direct functionalization of unsubstituted isoxazole (1) was achieved by generation of 4-isoxazolyl anion species (3). An efficient 4-iodination of isoxazole and halogen–metal exchange reaction using a turbo Grignard reagent (iPrMgCl? LiCl) were essentia
Iodocyclization of hydroxylamine derivatives based on the control of oxidative aromatization leading to 2,5-dihydroisoxazoles and isoxazoles
Okitsu, Takashi,Sato, Kana,Potewar, Taterao M.,Wada, Akimori
, p. 3438 - 3449 (2011/06/26)
An efficient method for the synthesis of 2,5-dihydroisoxazoles and isoxazoles using iodocyclization of N-alkoxycarbonyl O-propargylic hydroxylamines has been developed. 2,5-Dihydro-4-iodoisoxazole underwent the cross-coupling reactions without aromatization to afford polyfunctionalized 2,5-dihydroisoxazoles. This process was applied to the preparation of valdecoxib and its 2,5-dihydro-derivative.
