TMG-promoted [3 + 2] organocatalytic 1,3-dipolarcycloaddition reactions of allyl ketones with in situ generated nitrileoxides have been developed. This strategy could generate 3,5-disubstituted isoxazolines in high yields and regioselectivities.
Reactions of heterocyclic cations with nitrogen-containing nucleophiles. 11. Reaction of 2,6-diphenylpyrylium perchlorate with primary amines, hydrazine, and hydroxylamine
作者:�. A. Zvezdina、A. N. Popova、A. I. Pyshchev、G. N. Dorofeenko
DOI:10.1007/bf00503547
日期:1982.4
KANEMASA, SHUJI;ASAI, YOSHIHIKO;TANAKA, JUNJI, BULL. CHEM. SOC. JAP., 64,(1991) N, C. 375-380