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31 092 (0,1s)

Result

Regioselective Control of the SNAr Amination of 5-Substituted-2,4-Dichloropyrimidines Using Tertiary Amine Nucleophiles

The SnAr reaction of 2,4-dichloropyrimidines,further substituted with an electron-withdrawing substituent at C-5, has selectivity for substitution at C-4. Here to the reaction of a secondary amine nucleophile at C-2. This <...

CC - Organická chemie

  • 2015
  • Jx
  • Link
Result

Regioselective SNAr reaction of the phenoxathiin based thiacalixarene as a route to a novel macrocyclic skeleton

imposed by the heterocyclic moiety is a driving force of this SNAr reaction.

Organic chemistry

  • 2020
  • Jimp
  • Link
Result

Nucleophilic aromatic substitutions enable diversity-oriented synthesis of heterocyclic atropisomers via non-atropisomeric intermediates

(SNAr) reactions can progress via non-atropisomeric intermediates and transition states. We put forth fast, mild, practical, regio- and chemoselective SNAr reactions in seconds. Products of SNAr are readi...

Organic chemistry

  • 2025
  • Jimp
  • Link
Result

SNAr Reactions of Nitro-(pentafluorosulfanyl)benzenes To Generate SF5 Aryl Ethers and Sulfides

Nucleophilic aromatic substitution of the nitro group of para- and meta-nitro-(pentafluorosulfanyl)benzene with alkoxides and thiolates generates a range of substituted 4- and 3-(pentafluorosulfanyl)benzenes in a single-step reaction....

CC - Organická chemie

  • 2011
  • Jx
  • Link
Result

Bismuth A(3)-Corroles: Useful Precursors for the Development of meso-Substituted Free-Base Corroles

Systematic studies on regioselective functionalization reactions employing of the thiols anddithiols a high-yielding reaction procedure was established to obtain mono-, di-, and tri-functionalized corroles at room temperature within...

CE - Biochemie

  • 2014
  • Jx
  • Link
Result

"Parallel writing" and the process of constituting "literary fact". The case of the correspondence between Helena Bukovanska and Ludvik Vaculik as he was finishing the novel Cesky snar

Using material from the mutual correspondence between Ludvik Vaculik and Helena Bukovanska, this study aims to shed light on some aspects of the genesis of the novel Cesky snar [A Czech Dreambook] and Vaculik's artistic method in genera...

Literary theory

  • 2024
  • Jimp
  • Link
Result

Syntheses and reactivity of alkyl 1-[N-(2-chloro-5-nitro-phenyl)-benzimidoyl] thioureas

of benzothioamide 8 and bis-benzimidoyl sulfide 9 derivatives from the reaction of imidoyl...

CC - Organická chemie

  • 2012
  • Jx
  • Link
Result

Construction of the carbon-chalcogen (S, Se, Te) bond at the 2,6-positions of BODIPY via Stille cross-coupling reaction

Seven new 2-chalcogen-or 2,6-dichalcogen-(S, Se, Te) BODIPY derivatives were synthesized in good to excellent yields (55-95%) by a Pd-catalyzed C-heteroatom Stille cross-coupling reaction, overcoming the limitations of SNAr. The flu...

CC - Organická chemie

  • 2016
  • Jx
  • Link
Result

Nucleophile-induced transformation of phenoxathiin-based thiacalixarenes

of the macrocyclic skeleton through a cascade of three SNAr reactions triggered...

Organic chemistry

  • 2021
  • Jimp
  • Link
Result

Novel fluorinated benzimidazole-based scaffolds and their anticancer activity in vitro

A small library of twelve, structurally diverse, fluoroaryl benzimidazoles was prepared using a simple synthetic strategy employing-SNAr reactions. This allowed rapid assembly of heterocyclic structures containing linked and tethere...

FR - Farmakologie a lékárnická chemie

  • 2016
  • Jx
  • Link
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