Synthesis of a Functionalized Allylic Phosphine Oxide
摘要:
A functionalized allylic phosphine oxide has been prepared by regioselective bromination of 2-(methyldiphenylphosphinoyl)-1-propene followed by nucleophilic substitution with acetate. Hydrolysis and protection yielded the target compound.
Synthesis of a Functionalized Allylic Phosphine Oxide
摘要:
A functionalized allylic phosphine oxide has been prepared by regioselective bromination of 2-(methyldiphenylphosphinoyl)-1-propene followed by nucleophilic substitution with acetate. Hydrolysis and protection yielded the target compound.
Facile synthesis of bisphosphine monoxides from Morita–Baylis–Hillman carbonates
作者:Rong Zhou、Kai Zhang、Rongfang Liu
DOI:10.1080/10426507.2015.1100192
日期:2016.6.2
GRAPHICAL ABSTRACT ABSTRACT A facile two-step synthesis of bisphosphine monoxides (BPMOs, with both the phosphine and phosphine oxide moieties within one molecule) from readily available Morita–Baylis–Hillman (MBH) carbonates was realized. Under the catalysis of DABCO, the MBH carbonates undergo allylic phosphorylation reaction with diphenylphosphine oxide or diethyl phosphonate to give monophosphine
NOUVELLES VOIES D'ACCES AUX 2-ETHOXYCARBONYLALLYLPHOSPHONATES
作者:Hédi Mrabet、Hédi Zantour
DOI:10.1080/10426500490257005
日期:2004.1
The Michaelis-Arbusov reaction (method A) and the nucleophilic addition of dialkylphosphites followed by Hoffman olefination (method B) represent two synthetic methods giving a variety of 2-ethoxycarbonylallyl-phosphonates 2, in good yields, from readily accessible ethyl 2-(N,N-dialkylaminomethyl) acrylates 1.
herein is the first 1,3-difunctionalization of alkenes via photocatalysis. A single cobaloxime is used to carry out twocatalytic cycles in which cobaloxime is used not only as a photocatalyst to initiate the reaction but also as a metal catalyst for the β-H elimination process. Electron-deficient alkenes, electron-richalkenes, and unactivated alkenes could be directly converted to 1,3-bisphosphorylated