Literature DB >> 16404526

Three-component reaction between triphenylphosphine, dialkyl acetylenedicarboxylates and urea or N-methylurea.

Issa Yavari1, Nader Zabarjad-Shiraz.   

Abstract

The stabilized phosphoranes, obtained from the three-component reaction between dialkyl acetylenedicarboxylates and urea or N-methylurea in the presence of triphenylphosphine, undergo a smooth reaction in boiling toluene to produce iminophosphoranes in good yields. Under the same reaction conditions, the phosphorane obtained from N-methylurea and dimethyl acetylenedicarboxylate yields methyl 1-methyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carboxylate.

Entities:  

Mesh：

Substances：

Year:  2006        PMID： 16404526     DOI： 10.1007/s11030-006-8696-2

Source DB:  PubMed          Journal:  Mol Divers        ISSN： 1381-1991            Impact factor:   2.943


  1 in total

1.  Multicomponent Reactions with Isocyanides.

Authors: 
Journal:  Angew Chem Int Ed Engl       Date:  2000-09-15       Impact factor: 15.336
  1 in total
  4 in total

1.  Diastereoselective synthesis of fused [1,3]thiazolo[1,3]oxazins and [1,3]oxazino[2,3-b][1,3]benzothiazoles.

Authors:  Issa Yavari; Zinatossadat Hossaini; Sanaz Souri; Samereh Seyfi
Journal:  Mol Divers       Date:  2009-03-13       Impact factor: 2.943

2.  Reaction between enaminones and acetylenic esters in the presence of triphenylphosphine: a convenient synthesis of alkyl 2(1-benzyl-2,4-dioxo-2,3,4,5,6,7-hexahydro-1H-indol-3-yl)acetates.

Authors:  Farough Nasiri; Massood Bayzidi; Amin Zolali
Journal:  Mol Divers       Date:  2012-08-25       Impact factor: 2.943

3.  Synthesis of functionalized 1,2,4-triazole-3-thiones from ammonium isothiocyanate, acid chlorides, and arylhydrazines.

Authors:  Issa Yavari; Faezeh Shirgahi-Talari; Zinatossadat Hossaini; Maryam Sabbaghan; Samereh Seyfi
Journal:  Mol Divers       Date:  2010-01-16       Impact factor: 2.943

4.  A facile route to diastereomeric phosphorus ylides. Chemoselective synthesis of dialkyl (E)-2-[1-(2-oxocyclopentylidene)ethyl]-2-butenedioates.

Authors:  Sakineh Asghari; Mohammad Bagher Poushani; Samaneh Ramezani
Journal:  Molecules       Date:  2008-02-07       Impact factor: 4.411
  4 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.