Efficient Heck Arylations of Cyclic and Acyclic Acrylate Derivatives Using Arenediazonium Tetrafluoroborates. A New Synthesis of the Antidepressant Drug (±)-Paroxetine
摘要:
The Heck arylation of acyclic- and cyclic-substituted acrylates using several arenediazonium tetrafluoroborates was investigated. Arylations were carried out under aerobic, ligand-free conditions to provide the corresponding substituted acrylates in moderate to high isolated yields. Heck arylations were usually completed in less than 2 h in refluxing methanol. The aza-endocyclic acrylate derivative 11a was converted into the antidepressant drug ((+)(-))-paroxetine in a concise new route in good overall yield.
nucleophiles in coupling reactions, have seen limited application in the catalytic regioselective addition to unsaturated hydrocarbons. In this study, we present a microwave-assisted, palladium-catalyzed conjugate addition reaction involving arylsilanes and activated alkynes. This methodology for the catalytic functionalization of alkynes with organosilicon reagents offers a straightforward route to
phenylpropiolic acidderivatives are compatible with this hydroarylation protocol, offering an alternative selectivity to traditional β-syn-hydroarylation reactions. The distinct advantages of our method include precise control over selectivity, reduced catalyst loading, and broad tolerance toward functional groups. These features highlight the potential of our approach in the synthesis of multifunctionalized
Mitra, Jayati; Mitra, Alok K, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 9, p. 613 - 616
作者:Mitra, Jayati、Mitra, Alok K
DOI:——
日期:——
New Approaches towards the Synthesis of Alkenes using the Horner-Wadsworth-Emmons (HWE) Reaction as the Key Step
作者:Kerstin Bodman、Shenay Has-Becker、Oliver Reiser
DOI:10.1080/10426509908546210
日期:1999.1.1
Efficient Heck Arylations of Cyclic and Acyclic Acrylate Derivatives Using Arenediazonium Tetrafluoroborates. A New Synthesis of the Antidepressant Drug (±)-Paroxetine
作者:Julio Cezar Pastre、Carlos Roque Duarte Correia
DOI:10.1021/ol060248e
日期:2006.4.1
The Heck arylation of acyclic- and cyclic-substituted acrylates using several arenediazonium tetrafluoroborates was investigated. Arylations were carried out under aerobic, ligand-free conditions to provide the corresponding substituted acrylates in moderate to high isolated yields. Heck arylations were usually completed in less than 2 h in refluxing methanol. The aza-endocyclic acrylate derivative 11a was converted into the antidepressant drug ((+)(-))-paroxetine in a concise new route in good overall yield.