Synthesis of hydroxy derivatives from adamantanecarboxylic acids in the system MnO2–H2SO4
摘要:
A convenient procedure has been developed for the synthesis of mono- and dihydric cage alcohols from adamantanecarboxylic acids and their esters using the MnO2-H2SO4 system. The reaction at elevated temperature involved both decarboxylation and decarbonylation of the initial acid or ester.
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.
Hexagonal BaFeO3−δ containing high valent iron species acted as an efficient heterogeneous catalyst for the aerobic oxidation of alkanes without the need for additives. The activity of BaFeO3−δ was much higher than that of typical Fe3+/Fe2+-containing iron oxide-based catalysts, and the recovered catalyst could be reused without significant loss of catalytic performance.
含有高价铁元素的六方BaFeO 3- δ可以有效地催化多烷氧化,而无需添加添加剂。BaFeO 3- δ的活性远高于典型的含Fe 3+ / Fe 2+的氧化铁基催化剂,并且回收的催化剂可以重复使用而不会显着降低催化性能。
Synthesis of diacetylamino and diamino derivatives of adamantane series
作者:Yu. N. Klimochkin、E. A. Ivleva、A. S. Serzhantova、A. K. Shiryaev、I. K. Moiseev
DOI:10.1134/s1070428017080024
日期:2017.8
1,3-Diacetylamino derivatives were synthesized directly from adamantane series hydrocarbons or from adamantan-1-ylacetic acids by a one-pot method with a succession of an oxidation stage and Ritter’s reaction in nitric acid and in a mixture of sulfuric and nitric acids. The hydrolysis of 1,3-diacetylamino derivatives in an acidic medium leads to scaffold diamines and diaminoacids.