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44 093 (0,378s)

Result

Degradation and cis-to-trans isomerization of poly[(2,4-difluorophenyl)acetylene]s of various initial molecular weight: SEC, NMR, DLS and EPR study

Molecular weight (MW) and configurational stabilities of a series of high-cis poly[(2,4-difluorophenyl)acetylene]s (PdFPhA, Mw from 2.2 104 to 9.7 105) exposed to the atmosphere and diffuse daylight are reported. Polymers dissolved in THF-d8...

CF - Fyzikální chemie a teoretická chemie

  • 2013
  • Jx
  • Link
Result

Degradation and cis-to-trans isomerization of Poly[(2,4-di?uorophenyl)acetylene]s of various initial molecular weight: SEC, NMR, DLS and EPR study

Molecular weight (MW) and configurational stabilities of a series of high-cis poly[(2,4-difluorophenyl) acetylene]s (PdFPhA, Mw from 2.2 104 to 9.7 105) exposed to the atmosphere and diffuse daylight are reported. Polymers dissolved in THF-d...

CF - Fyzikální chemie a teoretická chemie

  • 2013
  • Jx
  • Link
Result

Electrochemistry of molecular wires containing repetitive Bis-(4-pyridinium)1,4-benzene units

Electrochemistry of molecular wires containing repetitive Bis-(4-pyridinium)1,4-benzene units...

CC - Organická chemie

  • 2003
  • Jx
Result

Preparation of SF5 Aromatics by Vicarious Nucleophilic Substitution Reactions of Nitro(pentafluorosulfanyl)benzenes with Carbanions

Vicarious nucleophilic substitutions (VNS) of hydrogen in 1-nitro-4-(pentafluorosulfanyl)benzene with carbanions provide 2-substituted 1-nitro-4-(pentafluorosulfanyl)benzenes in good to high yields. VNS of 1-nitro-...

CC - Organická chemie

  • 2011
  • Jx
  • Link
Result

Covalent analogues of DNA base-pairs and triplets. Part 3: Synthesis of 1,4- and 1,3-bis(purin-6-yl)benzenes and 1-(1,3-dimethyluracil-5-yl)-3 or 4-(purin-9-yl)benzenes.

Synthesis of 1,4- and 1,3-bis(purin-6-yl)benzenes and 1-(1,3-dimethyluracil-5-yl)-3 or 4-(purin-9-yl)benzenes by the stille reactions is described....

CC - Organická chemie

  • 2002
  • Jx
Result

Direct Amination of Nitro(pentafluorosulfanyl)benzenes through Vicarious Nucleophilic Substitution of Hydrogen

1-Nitro-4-(pentafluorosulfanyl)benzene underwent direct amination with 1,1,1)aniline in good yield. 1-Nitro-3-(pentafluorosulfanyl)benzene, under similarconditions, gave 2-nitro-4(pentafluorosulfanyl)aniline, also ...

CC - Organická chemie

  • 2012
  • Jx
  • Link
Result

Modular synthesis of 4-aryl- and 4-amino-substituted benzene C-2'-deoxyribonucleosides

Synthesis of the title C-nucleosides was developed based on preparation of bromophenyl C-nucleosides and their follow-up cross-coupling reactions or aminations....

CC - Organická chemie

  • 2008
  • Jx
Result

A Modular Methodology for the Synthesis of 4- and 3- Substituted Benzene and Aniline C-Ribonucleosides

An efficient modular Methodology for the Synthesis of 4- and 3- Substituted Benzene and Aniline C-Ribonucleosides was developed based on synthesis of bromobenzene nucleosides and their cross-coupling reactions....

CC - Organická chemie

  • 2008
  • Jx
Result

Novel (2,6-difluorophenyl)(2-(phenylamino)pyrimidin-4-yl) methanones with restricted conformation as potent non-nucleoside reverse transcriptase inhibitors against HIV-1

and phenyl type B-arm, a series of (2,6-difluorophenyl)(2-(phenylamino)pyrimidin-4-yl linker bearing B phenyl arm was successfully attached at both C-2 and C-4 positions = 4 nM) with no significant toxicity (CC50 ...

CC - Organická chemie

  • 2016
  • Jx
  • 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-ste...

CC - Organická chemie

  • 2011
  • Jx
  • Link
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