Highly Regio- and Stereoselective Nickel-Catalyzed Addition of Dialkyl Phosphites to Ynamides: an Efficient Synthesis of β-Aminovinylphosphonates

2011 ◽  
Vol 353 (2-3) ◽  
pp. 263-267 ◽  
Author(s):  
Antoine Fadel ◽  
Frédéric Legrand ◽  
Gwilherm Evano ◽  
Nicolas Rabasso
Keyword(s):  
Efficient Synthesis ◽  
Dialkyl Phosphites

A new facile and efficient synthesis of trans-(+)-sobrerol by biotransformation of α-pinene using extremophiles microorganisms

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
LA Vilaseca ◽  
J Quillaguamán ◽  
L Fuentes ◽  
O Sterner
Keyword(s):  
Efficient Synthesis

Highly efficient synthesis of methyl ethyl ketone oxime through ammoximation over Ti-MOR catalyst

2014 ◽  
Vol 34 (1) ◽  
pp. 243-250
Author(s):  
Jianghong DING ◽  
Le XU ◽  
Hao XU ◽  
Haihong WU ◽  
Yueming LIU ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Efficient Synthesis ◽  
Highly Efficient

Synthesis of Phosphonates, Phosphinates and Tertiary Phosphine Oxides by Pd- or Ni-Catalyzed Microwave-Assisted P–C Coupling Reactions without the Addition of Conventional Ligands

2021 ◽  
Vol 25 ◽  
Author(s):  
Réka Henyecz ◽  
György Keglevich
Keyword(s):  
Tautomeric Form ◽  
Catalyst Precursor ◽  
Coupling Reactions ◽  
Optimum Conditions ◽  
Pd Catalysts ◽  
Catalyst Complex ◽  
Two Factors ◽  
Dialkyl Phosphites ◽  
Catalyst Systems ◽  
P Ligands

Abstract: Microwave (MW)-assistance may be a powerful tool also in the Hirao P–C coupling reactions of vinyl/aryl halides with dialkyl phosphites in the presence of Pd-catalysts/P-ligands elaborated forty years ago. This review surveys the development of this reaction by showing the expansion of the reagents and catalysts, as well as the information accumulated. The stress was laid on the “green” aspects, the simplification of the catalyst systems, and the reliable mechanistic details in order to be able to establish the optimum conditions. The best protocol involves the use of some excess of the >P(O)H reagent to ensure the PdII→Pd0 reduction and, via its trivalent tautomeric form (>POH) also the P-ligand. The overall rate is the result of two factors, the activity of the catalyst complex formed, and the reactivity of the reactants in the P–C coupling reactions. Both components are influenced by the nature of the aryl substituents in Ar2P(O)H. NiII salts may also be used as the catalyst precursor, however, despite the PdII→Pd0→PdII route, in this case, a NiII→NiIV→NiII sequence was proved.

Advanced Heterocyclic Branched Semiconducting Units - Highly Efficient Synthesis and Physicochemical Characteristic

2013 ◽  
Vol 17 (3) ◽  
pp. 283-295 ◽  
Author(s):  
Jadwiga Soloducho ◽  
Joanna Cabaj ◽  
Kamila Olech ◽  
Przemyslaw Data ◽  
Mieczyslaw Lapkowski
Keyword(s):  
Physicochemical Characteristic ◽  
Efficient Synthesis ◽  
Highly Efficient
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