作者:N. F. Bondar'、S. S. Koval'skaya、R. V. Skupskaya、F. S. Pashkovskii、E. A. Dikusar、N. G. Kozlov、F. A. Lakhvich
DOI:10.1023/a:1012356929695
日期:——
endo-2-Ethynyl-1,7,7-trimethyibicyclo[2.2.1]heptan-exo-2-ol reacts with nitrile oxides, yielding endo-2-(3-R-isoxazol-5-yl)-1,7,7-trimethylbicyclo[2.2.1]heptan-exo-2-ols. Treatment of the latter with methanesulfonyl chloride in pyridine leads to dehydration and Formation of mixtures of the corresponding 1-(3-R-isoxazol-5-yl)-3,3-dimethyl-2-methylenebicyclo[2.2.1]heptanes and 2-(3-R-isoxazol-5-yl)-1,7,7-trimethylbicyclo[2.2.1]hept-2-enes at a ratio of 2:1.