作者:Yu. N. Klimochkin、A. V. Yudashkin、E. O. Zhilkina、E. A. Ivleva、I. K. Moiseev、Ya. F. Oshis
DOI:10.1134/s1070428017070028
日期:2017.7
An efficient one-pot procedure has been developed for the synthesis of cagealcohols with hydroxy groups in the bridgehead positions. The procedure includes initial nitroxylation with nitric acid or a mixture of nitric acid with acetic acid and subsequent hydrolysis in the presence of urea.
Nitrolysis of carboxylic t-butyl and 1-adamantyl esters
作者:Paolo Strazzolini、Maria Grazia Dall'Arche、Angelo G. Giumanini
DOI:10.1016/s0040-4039(98)02079-6
日期:1998.12
A cheap, less problematic, efficient and selective reagent for the removal of the t-butyl and 1-adamantyl protecting groups from carboxylic esters was found to be commercial 100% HNO3 in CH2Cl2. Incidentally, 1,1-dimethylethyl nitrate and tricyclo[3.3.1.13,7]dec-1-yl (1-adamantyl) nitrate are coproducts in a clean reaction. The procedure is in many ways superior to the method employing CF3COOH.
Convenient Preparation of Alkyl Nitrates Free of Nitrites with Potassium Nitrate and Boron Trifluoride Hydrate
作者:George A. Olah、Qi Wang、Xing-ya Li、G. K. Surya Prakash
DOI:10.1055/s-1993-25830
日期:——
Primary and secondary alkyl nitrates free of nitrites were conveniently prepared by treating the corresponding alcohols with potassium nitrate and boron trifluoride 1.25 hydrate. This procedure was also successful for the preparation of 1-adamantyl nitrate.
Antiviral activity of adamantane series hydroxy derivatives
作者:Yu. N. Klimochkin、M. V. Leonova、I. R. Korzhev、I. K. Moiseev、G. V. Vladyko、L. V. Korobchenko、E. I. Boreko、S. N. Nikolaeva
DOI:10.1007/bf00777145
日期:1992.7
Previous authors [i] have established the fact that introducing hydroxyl groups into the adamantane framework broadens the scope of antiviralactivity as well as reduces toxicity. For example, 3,5-dimethyl-7-ethyladamantanol-i exhibits pronounced activity with respect to herpes, influenza and vaccine viruses [2]. It might be expected that changing the lipophilic capacity of the skeletal fragment when
Chemoselectivity of Nitroxylation of Cage Hydrocarbons
作者:Yu. N. Klimochkin、M. V. Leonova、E. A. Ivleva
DOI:10.1134/s107042802010005x
日期:2020.10
mixtures with acetic acid, aceticanhydride, and methylene chloride has been studied. More reactive substrates react with lowest selectivity regardless of the reaction medium. The primary nitroxylation products of cage hydrocarbons are nitrooxy derivatives. The compositions of reaction mixtures obtained in the reactions of some cage hydrocarbons with nitric anhydride in carbon tetrachloride have been determined