Фазовий склад та магніторезистивні властивості плівкових системи Ni/Au/Ni

Магнітні багатошарові структури, які останніми роками інтенсивно досліджуються, важливі як з точки зору теоретичних досліджень, так і для практичного застосування. Прикладний інтерес викликаний їх здатністю поєднувати у собі властивості магнітом’яких і магнітотвердих матеріалів, які суттєво залежать від структури і фазового складуз разків.У даній роботі, в якості досліджуваних магнітних структур, було використано тришарові плівкові системи Ni(d) / Au(15 нм) / Ni(25 нм) отримані шляхом пошарової конденсації, де d – товщина верхнього шару Ni, яка змінювалась від 5 до 15 нм

One-Pot Access to Indolo[2,3-<i>b</i>]quinolines by Electrophile-Triggered Cross-Amination/Friedel–Crafts Alkylation of Indoles with 1-(2-Tosylaminophenyl)ketones

Activation of C2 and C3 of indoles by molecular iodine (I₂) and base followed by in situ reaction with 1-(2-tosylaminophenyl)­ketones or 2-tosylaminobenzaldehyde can afford highly substituted indolo­(2,3-<i>b</i>)­quinolines in moderate to excellent yields (up to 99%). The reaction provides a metal-free selective difunctionalization of indoles. The synthetic potential of the protocol has been illustrated by the synthesis of neocryptolepine and its 11-methyl analogue

One-Pot Access to Indolo[2,3-<i>b</i>]quinolines by Electrophile-Triggered Cross-Amination/Friedel–Crafts Alkylation of Indoles with 1-(2-Tosylaminophenyl)ketones

Activation of C2 and C3 of indoles by molecular iodine (I₂) and base followed by in situ reaction with 1-(2-tosylaminophenyl)­ketones or 2-tosylaminobenzaldehyde can afford highly substituted indolo­(2,3-<i>b</i>)­quinolines in moderate to excellent yields (up to 99%). The reaction provides a metal-free selective difunctionalization of indoles. The synthetic potential of the protocol has been illustrated by the synthesis of neocryptolepine and its 11-methyl analogue

Gold-Catalyzed Cascade Reaction of Hydroxy Enynes for the Synthesis of Oxanorbornenes and Naphthalene Derivatives

An efficient and selective gold-catalyzed cascade reaction for the synthesis of oxanorbornenes and naphthalene derivatives from easily prepared hydroxy enynes has been developed. Divergent products could be obtained from the same substrates by different gold catalytic systems

Facile Synthesis of Carbazoles via a Tandem Iodocyclization with 1,2‑Alkyl Migration and Aromatization

A strategy for the synthesis of iodocarbazoles through a tandem iodocyclization with migration and aromatization is presented. This sequential cascade process is concisely conducted at room temperature and in a short time. Moreover, the obtained halides can be further applied to palladium-catalyzed coupling reactions, which act as the important intermediates for building other valuable compounds

Facile Synthesis of Carbazoles via a Tandem Iodocyclization with 1,2‑Alkyl Migration and Aromatization

A strategy for the synthesis of iodocarbazoles through a tandem iodocyclization with migration and aromatization is presented. This sequential cascade process is concisely conducted at room temperature and in a short time. Moreover, the obtained halides can be further applied to palladium-catalyzed coupling reactions, which act as the important intermediates for building other valuable compounds

Electrophilic Cyclization of Aryl Propargylic Alcohols: Synthesis of Dihalogenated 6,9-Dihydropyrido[1,2‑<i>a</i>]indoles via a Cascade Iodocyclization

A strategy for the synthesis of 6,9-dihydropyrido­[1,2-<i>a</i>]­indoles through a cascade iodocyclization of 4-(3-methyl-1<i>H</i>-indol-1-yl)-1,1-diphenylbut-2-yn-1-ol derivatives is presented. This reaction was conducted under very mild conditions and in a short time. The reactions are metal-free, are environmentally friendly and give up to 94% yield. Moreover, the obtained halides allow functional group diversification by palladium-catalyzed coupling reactions, which could act as potential intermediates for the synthesis of valuable compounds

Electrophilic Cyclization and Intermolecular Acetalation of 2‑(4-Hydroxybut-1-yn-1-yl)benzaldehydes: Synthesis of Diiodinated Diepoxy­dibenzo­[<i>c</i>,<i>k</i>]­[1,9]­dioxacyclo­hexa­decines

An expedient strategy for the preparation of diiodinated diepoxy­dibenzo­[<i>c</i>,<i>k</i>]­[1,9]­dioxa­cyclo­hexadecines from readily available 2-(4-hydroxybut-1-yn-1-yl)­benzaldehydes through electrophile-triggered tandem cyclization/intermolecular acetalation sequence has been presented. The electrophilic macrocyclization can be performed under mild conditions and in up to gram quantities. Moreover, palladium-catalyzed coupling and reduction reactions of the resulting iodides could efficiently afford oxa-macrocycles

Correction to “Facile Synthesis of Halogenated Spiroketals via a Tandem Iodocyclization”

Correction to “Facile Synthesis of Halogenated Spiroketals via a Tandem Iodocyclization

AgSCF₃‑Mediated Trifluoromethylthiolation/Radical Cascade Cyclization of 1,6-Enynes

A AgSCF₃-mediated radical cascade cyclization/trifluoromethylthiolation of 1,6-enynes triggered by a C–C triple bond is developed. This protocol also provides another opportunity to construct a valuable trifluoromethylthio-substituted polycyclic fluorene system through the formations of one C–SCF₃ bond and two C–C bonds in a single step