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Acta Chimica Sinica ›› 1980, Vol. 38 ›› Issue (4): 351-357. Previous Articles     Next Articles

β-双酮系化合物的核磁共振谱研究

朱自莹, 李蓓莉, 袁群, 龙海燕, 叶伟贞, 孙桂云, 程德凯, 严亦君, 盛怀禹   

  1. 中国科学院上海有机化学研究所
  • 投稿日期:1978-07-14 发布日期:2013-06-03

NMR STUDIES OF β-DIKETONES

ZHU ZI-YING, LI BEI-LI, YUAN QUN, LONG HAI-YAN, YE WEI-ZHEN, SUN GUI-YUN, CHENG DE-KAI, YAN YI-JUN, SHENG HUAI-YU   

  1. Shanghai Institute of Organic Chemistry, Academia Sinica
  • Received:1978-07-14 Published:2013-06-03

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Twenty si β-diketones with various substituents were synthesized.From their NMR spectra the chemical shifts of the main groups were egamincd and discussed.Three possible tautomeric isomers of The β-diketones, the keto form A, the cis-enol form B, the trans-enol form C, exist in equilibrium.