Perannulanes. A new class of fused polycyclic compounds

JA Marshall, JC Peterson…

文献索引：Marshall, James A.; Peterson, James C.; Lebioda, Lukasz Journal of the American Chemical Society, 1983 , vol. 105, # 21 p. 6515 - 6516

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被引用次数: 7

摘要

Similarly a 9-ppb shift in the C-1 signal in 3b compared with the 18-ppb shift found for fully 0- labeled5 3b shows 3b in the reaction product to have one heavy oxygen. The I7O NMR spectrum3 of natural abundance 4b has signals at 175 and 146 ppm, assignable from their 2: 1 ratio to the sulfonyl and endocyclic oxygens, respectively, while 3b gives a single peak at 237 ppm; the product mixture had peaks at 146, 175, and 237 ppm in the ratio 2: 2: 1 ...