排序方式: 共有53条查询结果,搜索用时 0 毫秒
51.
52.
V. L. Mamedova D. R. Sharafutdinova K. A. Nikitina T. P. Gerasimova O. B. Bazanova V. A. Al’fonsov 《Russian Journal of General Chemistry》2014,84(4):700-703
Metal salts (including transition metals salts) of chiral natural diterpenoid isosteviol and its hydrophosphoryl derivative were obtained for the first time. The compounds obtained can be used in pharmaceutics, metal catalysis, and also for creating new materials with magnetic properties. 相似文献
53.
Anton E. Nikolaev Dilyara R. Sharafutdinova Yurii Ya. Efremov Vladimir S. Reznik 《Tetrahedron letters》2008,49(41):5994-5997
Cyclization of 1,3-bis(ω-bromoalkyl)-5-bromouracil with p-methoxybenzylamine or sodium sulfide led to a series of pyrimidinophanes containing heteroatoms in bridges. An unusual behaviour of the 5-bromouracil ring, namely its contraction into hydantoin units during the cyclization reactions with p-methoxybenzylamine was observed. Sodium sulfide does not affect the 5-bromouracil ring, and no transformation products were observed in the synthesis of pyrimidinophanes with sulfur bridges. A possible reaction mechanism is given. 相似文献