Reaction of Xanthates with Trialkyl Phosphites

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An Efficient Synthesis of Vinylphosphonates from Alkyl Cyanoformates, Activated Acetylenes, and Trialkyl Phosphites

An efficient synthesis of vinylphosphonates is described. This involves the reaction of alkyl cyanoformates and dialkyl acetylendicarboxylates in the presence of trialkyl phosphites. The 1H, 13C NMR, and 31P NMR spectra of vinylphosphonates having different substitution are consistent with the presence of two geometrical isomers.

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Chemoselective Reaction Between 5,5-Diarylhydantoins and Acetylenic Esters in the Presence of Trialkyl Phosphite

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Promoted Preparation of Aminophosphonate and Functionalized Coumarins Derivatives as Key Constituent of Many Pharmaceutical Compounds

The reaction  between  trialkyl  phosphites  with  dialkyl  actylenedicarboxylates  in the presence of 2-hydroxyquinoline  (2-quinolinol)  leads  to  β-aminophsphonates derivatives  which  they  have  many applications in medicinal chemistry. When the reaction was performed by triphenylphosphite, a new pyrano quinoline  compounds  were obtained  in  fairly  good  yields. These  compounds also  ...

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A highly efficient, two-step sequence method for the deoxygenation of hydroxyl groups has been developed. The method involves the preparation of the 2-(2-iodophenyl)ethyl methyl phosphite derivative of an alcohol using methyl dichlorophosphite and 2-(2-iodophenyl)ethanol. Treatment of the phosphite intermediate with (n-Bu)3SnH/AIBN in refluxing benzene cleanly produces the deoxygenation product...

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ژورنال

عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan

سال: 1969

ISSN: 0037-9980,1883-6526

DOI: 10.5059/yukigoseikyokaishi.27.984