27349-48-0Relevant academic research and scientific papers
Atom-Economic Synthesis of Fully Substituted 2-Aminopyrroles via Gold-Catalyzed Formal [3+2] Cycloaddition between Ynamides and Isoxazoles
Xiao, Xin-Yu,Zhou, Ai-Hua,Shu, Chao,Pan, Fei,Li, Ting,Ye, Long-Wu
supporting information, p. 1854 - 1858 (2015/09/07)
A concise and flexible synthesis of fully substituted 2-aminopyrroles via gold-catalyzed formal [3+2] cycloaddition between ynamides and isoxazoles has been developed. Under mild reaction conditions, various 2-aminopyrrole derivatives were obtained in good to excellent yields, thus providing an efficient and atom-economic way for the construction of fully substituted 2-aminopyrroles. It was all very formal: A novel gold-catalyzed formal [3+2] cycloaddition between ynamides and isoxazoles has been developed, allowing the concise and flexible synthesis of fully substituted 2-aminopyrroles. Importantly, this strategy provides new mechanistic insights and offers an atom-economic way for the construction of fully substituted 2-aminopyrroles.
Lewis acid mediated addition of tri-n-butyl-stannylmethylisoxazole with aldehydes
Yamamoto, Makoto,Ohtsuka, Kazumi,Kishikawa, Keiki,Kohmoto, Shigeo
, p. 2177 - 2187 (2007/10/03)
Lewis acid mediated addition of 5-(tri-n-butylstannyl)methyl-3-methylisoxazole and its analogues with aldehydes have been carried out. Corresponding 5-(β-hydroxy)ethylisoxazoles were obtained in moderate yields, without ring opening of the isoxazole.
ISOXAZOLES AS 4b-DIKETONE SYNTHONS-SELECTIVE ANION FORMATION ON 3,5-DIALKYLISOXAZOLES
Brunelle, D. J.
, p. 3699 - 3702 (2007/10/02)
3,5-Dimethylisoxazole can be metalated and alkylated regiospecifically.Alkylation occurs first on the 5-methyl group, and a second alkylation occurs on the 3-methyl group.This method permits specific synthesis of disubstituted isoxazoles, and of the corresponding β-diketones.
