Heterocyclization of N-(1-chloro-2,2,2-trifluoroethylidene)carbamates with β-enaminoesters—a novel synthetic strategy to functionalized trifluoromethylated pyrimidines
摘要:
A novel synthetic strategy to 4-trifluoromethyl substituted 2-oxo-1,2-dihydropyrimidine-5-carboxylates has been developed based on the cyclocondensation of beta-enaminoesters with N-(1-chloro-2,2,2trifluoroethylidene)carbamates. (c) 2012 Elsevier Ltd. All rights reserved.
Heterocyclization of N-(1-chloro-2,2,2-trifluoroethylidene)carbamates with β-enaminoesters—a novel synthetic strategy to functionalized trifluoromethylated pyrimidines
摘要:
A novel synthetic strategy to 4-trifluoromethyl substituted 2-oxo-1,2-dihydropyrimidine-5-carboxylates has been developed based on the cyclocondensation of beta-enaminoesters with N-(1-chloro-2,2,2trifluoroethylidene)carbamates. (c) 2012 Elsevier Ltd. All rights reserved.
Control of Regio- and Enantioselectivity in the Asymmetric Organocatalytic Addition of Acetone to 4-(Trifluoromethyl)pyrimidin-2(1<i>H</i>)-ones
作者:Volodymyr A. Sukach、Viktor M. Tkachuk、Veronika M. Shoba、Volodymyr V. Pirozhenko、Eduard B. Rusanov、Alexey A. Chekotilo、Gerd-Volker Röschenthaler、Mykhailo V. Vovk
DOI:10.1002/ejoc.201301542
日期:2014.3
The reactions of variously substituted 4-(trifluoromethyl)pyrimidin-2(1H)-ones with acetone in the presence of L-proline or chiral secondary amine organocatalysts were studied. As demonstrated, 4-(trifluoromethyl)pyrimidin-2(1H)-ones unsubstituted at the 6-position of the heterocyclic ring react with acetone at the endocyclic C=N or C=C bond depending on whether thermodynamic or kinetic control is
Development of an efficient route to CF<sub>3</sub>-substituted pyrrolopyrimidines through understanding the competition between Michael and aza-Henry reactions
作者:V. M. Tkachuk、V. A. Sukach、K. V. Kovalchuk、M. V. Vovk、V. G. Nenajdenko
DOI:10.1039/c4ob02233e
日期:——
A simple control of temperature and time in the nitromethane addition to 4-trifluoromethylated pyrimidin-2-ones allowed regioselective synthesis of isomeric products.
Heterocyclization of N-(1-chloro-2,2,2-trifluoroethylidene)carbamates with β-enaminoesters—a novel synthetic strategy to functionalized trifluoromethylated pyrimidines
作者:Volodymyr A. Sukach、Viktor M. Tkachuk、Eduard B. Rusanov、Gerd-Volker Röschenthaler、Mykhaylo V. Vovk
DOI:10.1016/j.tet.2012.07.099
日期:2012.10
A novel synthetic strategy to 4-trifluoromethyl substituted 2-oxo-1,2-dihydropyrimidine-5-carboxylates has been developed based on the cyclocondensation of beta-enaminoesters with N-(1-chloro-2,2,2trifluoroethylidene)carbamates. (c) 2012 Elsevier Ltd. All rights reserved.