Recent Advances in the Synthesis of Hydrogenated Azocine-Containing Molecules

This review covers recent advances in synthesis of azocine-containing systems. The most approaches towards azocines are discussed. 1 Introduction 2 Ring-Expansion Reaction 2.1 Ring-Expansion Reaction of Cyclopentane Containing the 1,4-Diketone Moiety with Primary Amines (from 5 to 8) 2.2 Ring-Expansion Reaction of Annulated Tetrahydropyridines under the Action of Activated Alkynes (from 6 to 8) 2.3 Reductive Ring-Expansion Reaction of Cyclic Oximes 2.4 Other Ring-Expansion Reactions 3 Heck Reaction 4 Cycloaddition 5 Ring-Closing Metathesis (RCM) 6 Cyclization 6.1 Metal-Catalyzed Cyclization 6.2 Radical Cyclization 6.3 Friedel-Crafts Cyclization 6.4 Other Examples of Cyclizations 7 Microwave- and Photo-Assisted Reactions 8 Other Methods 8.1 Cascade and Tandem Reactions 8.2 Aldol Condensation 8.3 Thermolysis 8.4 Ring Opening 8.5 Other Methods 9 Conclusion. © Georg Thieme Verlag Stuttgart

Recent Advances in the Synthesis of Hydrogenated Azocine-Containing Molecules

This review covers recent advances in synthesis of azocine-containing systems. The most approaches towards azocines are discussed. 1 Introduction 2 Ring-Expansion Reaction 2.1 Ring-Expansion Reaction of Cyclopentane Containing the 1,4-Diketone Moiety with Primary Amines (from 5 to 8) 2.2 Ring-Expansion Reaction of Annulated Tetrahydropyridines under the Action of Activated Alkynes (from 6 to 8) 2.3 Reductive Ring-Expansion Reaction of Cyclic Oximes 2.4 Other Ring-Expansion Reactions 3 Heck Reaction 4 Cycloaddition 5 Ring-Closing Metathesis (RCM) 6 Cyclization 6.1 Metal-Catalyzed Cyclization 6.2 Radical Cyclization 6.3 Friedel-Crafts Cyclization 6.4 Other Examples of Cyclizations 7 Microwave- and Photo-Assisted Reactions 8 Other Methods 8.1 Cascade and Tandem Reactions 8.2 Aldol Condensation 8.3 Thermolysis 8.4 Ring Opening 8.5 Other Methods 9 Conclusion. © Georg Thieme Verlag Stuttgart

Technical-electronic support of optimizing English word perception in the special audience with limited abilities

Рассмотрению подвергается применение современных информационных технологий в виде электронно-технического обеспечения ModeSt (Modelling Structure) при освоении иностранного языка специальной аудиторией с раскрытием потенциала разработанного средства в оптимизации понимания значения англоязычного слова лицами с ограниченными лингво-перцептивными возможностями. The application of modern information technologies in the process of acquiring a foreign language by the special audience with limited abilities is examined. The potential of the developed technical-electronic means of optimizing English word perception of people with hearing loss and severe speech difficulties is disclosed

Catalytic Electrosynthesis of N,O-Heterocycles – Recent Advances

Recognized as gentler and more environmentally friendly compared to conventional methods, catalytic electrochemical reactions are a powerful tool for constructing heterocycles. Of special interest is indirect electrolysis, where the use of a redox mediator provides an additional means of reaction control, thus avoiding over-oxidation and facilitating improved selectivity. This minireview describes recent advances in catalytic electrochemical reactions for synthesizing N,O-heterocycles that appeared from 2018 until September 2019. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei

Synthesis of benzoazocines from substituted tetrahydroisoquinolines and activated alkynes in a tetrahydropyridine ring expansion

Tetrahydroisoquinolines underwent tandem piperidine ring enlargement in the presence of activated alkynes in acetonitrile or methanol, producing tetrahydrobenzo[d]azocines in high yields. © Wiley-VCH Verlag GmbH & Co. KGaA, 2007

Synthesis of pyrrolo[1,2- d] [1,4]diazecines through an alkyne-trigged sequence of cleavage/cyclization in 1-phenylethynyl substituted pyrrolo[1,2- a] pyrazines

Transformations of 2-methyl-1-R-1-phenylethynyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazines under the action of electron-deficient alkynes in aprotic and protic solvents were studied. 1-Phenyl-1-phenylethynyl substituted pyrrolopyrazine did not react with alkynes or gave complex reaction mixtures. 1-Alkyl substituted 1-phenylethynyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazines in protic solvents underwent expansion to 8-alkylidene-6-phenyl-1,2,3,8-tetrahydropyrrolo[1,2-d][1,4]diazecines. © 2022 Author(s)