Catalyst-Controlled C–H Functionalization of Adamantanes Using Selective H-Atom Transfer
作者:Hai-Bin Yang、Abigail Feceu、David B. C. Martin
DOI:10.1021/acscatal.9b01394
日期:2019.6.7
been developed using photoredox and H atom transfer catalysis. This C–H alkylation reaction has excellent chemoselectivity for the strong 3° C–H bonds of adamantanes in polyfunctional molecules. In substrate competition reactions, a reversal in selectivity is observed for the new H-atom transfer catalyst reported here in comparison to five known photochemical systems. Derivatization of a broad scope
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.
Amidation of Diamantane with Organic Nitriles and CBr4 Under the Action of Granulated Zeolite FeHY
作者:R. I. Khusnutdinov、N. А. Shchadneda、Yu. Yu. Mayakova、А. А. Yulamanova、А. N. Khazipova、B. I. Kutepov
DOI:10.1134/s1070363218040084
日期:2018.4
N-(1- and 4-diamantyl)amides have been synthesized by the reaction of diamantane with organic nitriles in the presence of CBr4 under the action of granulated zeolite FeHY. The optimal ratios of the catalyst, reagents and the conditions for preparation of 1-N-diamantylamides in high yield have been found.
appropriate tether securing intramolecular addition of the nitrene, the intermolecular C–H amination remains much less predictable. This study aims at addressing this issue by capitalizing on an efficient stereoselective nitrene transfer involving the combination of a chiral aminating agent 1 with a chiral rhodium catalyst 2. Allylic C–H amination of terpenes and enol ethers occurs with excellent yields as well
Amidation of Diamantane with Carboxylic Acid Amides and Carbon Tetrachloride in the Presence of Binder-Free Ni-HY Zeolite
作者:R. I. Khusnutdinov、N. A. Shchadneva、Yu. Yu. Mayakova、G. Z. Kashfetdinova、A. N. Khazipova
DOI:10.1134/s1070428020120106
日期:2020.12
Abstract N-(Diamantan-1- and 4-yl) carboxamides were synthesized by reaction of diamantane with carboxylic acid amides in the presence of carbontetrachloride and binder-free Ni-HY zeolite. Optimal amounts of the reactants and catalyst and reaction conditions were found to obtain the target products in high yields.