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29 649 (0,204s)

Result

Room-Temperature Negishi Reaction of Trisubstituted Vinyl Phosphates for the Synthesis of Tetrasubstituted Alkenes

The present study investigated the ability of bromovinyl phosphates to react with organozinc reagents at room temperature during palladium-catalyzed reactions. It was determined that both the bromine atom and the phosphate group were success...

Organic chemistry

  • 2020
  • Jimp
  • Link
Result

Design and Efficient Synthesis of Amino Acid Derived 2-Substituted Imidazoles by Palladium-Catalyzed Cross-Coupling Reactions

Negishi and Suzuki?Miyaura reactions with (hetero)aromatics.Optically active imidazole derivatives featuring an aamino acid motive substituted at the 2-position can be prepared in moderate to good yields by Negishi as well...

CC - Organická chemie

  • 2009
  • Jx
Result

Synthesis of Sulfonic Acid Salts and Sulfonic Acids by Advanced Cross-Coupling Reaction of Vinyl Sulfonates

The present work describes an advanced cross-coupling reaction of vinyl sulfonates for the synthesis of sulfonic acid salts and sulfonic acids under mild reaction conditions. The regioselectivity of the double Negishi r...

Organic chemistry

  • 2023
  • Jimp
  • Link
Result

Synthesis of (+/-)-3-Methoxyestra-1,3,5(10)-trienes by the Repetitive Use of Negishi Reagent

The repetitive use of Cp2ZrBu2 (Negishi reagent) was applied in the synthesis of three 3-methoxyestra-1,3,5(10)-trienone isomers within four steps from the advanced intermediate 11....

CC - Organická chemie

  • 2006
  • Jx
Result

Negishi cross-coupling reaction as a simple and efficient route to functionalized amino and alkoxy carbene complexes of chromium, molybdenum, and tungsten.

Synthesis of functionalized phenyl, 2-thienyl, and N-methyl-pyrrol-2-yl Fischer carbene complexes of chromium and tungsten was achieved via a Negishi cross-coupling reaction of metalated aminocarbenes in the presence of a palladium ...

CC - Organická chemie

  • 2014
  • Jx
  • Link
Result

*Synthesis of (plusminus)-3-Methoxyestra-1,3,5(10)-trienes by the Repetitive Use of Negishi Reagent.

Synthesis of (plusminus)-3-Methoxyestra-1,3,5(10)-trienes by the Repetitive Use of Negishi Reagent.

CC - Organická chemie

  • 2006
  • Jx
Result

Synthesis of 8-C-substituted 2,6-diaminopurine acyclic nucleoside phosphonates by Negishi cross-couplin

8-Allyl-, cyclopropyl-, trifluoromethyl-, cyano-, carbethoxy- and acetaldehydo-2,6-diamino- 9-[2-(phosphonomethoxy)ethyl]purine (PMEDAP) were prepared by Negishi cross-coupling of the 8-bromo-PMEDAP under catalysis with Pd2dba3 with various ...

CC - Organická chemie

  • 2008
  • D
Result

The synthesis of the 8-C-substituted 2,6-diamino-9-[2-(phosphonomethoxy)ethyl]purine (PMEDAP) derivatives by diverse cross-coupling reactions

The synthesis of the 8-C-substituted 2,6-diamino-9-[2-(phosphonomethoxy)ethyl]purine (PMEDAP) analogues was performed from diisopropyl 8-bromo-2,6-diamino-9-[2-(phosphonomethoxy)ethyl]purine using Stille, Suzuki-Miyaura, Negishi, and Sonogas...

CC - Organická chemie

  • 2011
  • Jx
  • Link
Result

Stereoselective Bromoboration of Acetylene with Boron Tribromide: Preparation and Cross-Coupling Reactions of (Z)-Bromovinylboronates

-bromovinyl)boronates in 57–60% overall yield. Their reactivity in a Negishi cross-coupling reaction was tested. An example of the one-pot reaction sequence of Negishi......

Organic chemistry

  • 2020
  • Jimp
  • Link
Result

Preparation and Transformations of Tetrakis(polyfluoroalkylated) Zirconacyclopentadienes.

Reaction of Negishi reagent (Cp2ZrBu2) with internal polyfluorinated alkynes 1 containing ethylene1 or trimethylene spacers afforded the corresponding intermediary tetrakis(polyfluoroalkylated) zirconacyclopentadienes 2. These in si...

CC - Organická chemie

  • 2005
  • O
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