Reaction Between 1,3-Dicarbonyl-Containing CH Acids and Dialkyl Acetylenedicarboxylates in the Presence of Silica Gel in Solvent-Free Conditions: An Efficient Method for the Synthesis of Electron-Poor Alkenes and Pyranes

REFERENCES

• Deka , N. ; Mariotte , A.-M. ; Boumendjel , A. Microwave mediated solvent-free acetylation of deactivated and hindered phenols . Green Chem. 2001 , 3 , 263 – 264 .
   Web of Science ®Google Scholar
• Kidwai , M. ; Venkataramanan , R. ; Dave , B. Solventless synthesis of thiohydantoins over K2CO3 . Green Chem. 2001 , 3 , 278 – 279 .
   Web of Science ®Google Scholar
• Díaz-Ortiz , A. ; de la Hoz , A. ; Langa , F. Microwave irradiation in solvent-free conditions: an eco-friendly methodology to prepare indazoles, pyrazolopyridines and bipyrazoles by cycloaddition reactions. Green Chem. 2000, 2, 165–172.
   Web of Science ®Google Scholar
• Shaabani , A. ; Soleimani , E. ; Khavasi , H. R. ; Hoffmann , R.-D. ; Rodewald , U. C. ; Pottgen , R. An isocyanide-based three-component reaction: Synthesis of fully substituted N-alkyl-2-triphenylphosphoranylidene glutarimides . Tetrahedron Lett. 2006 , 47 , 5493 – 5496 .
   Web of Science ®Google Scholar
• Keglevich , G. ; Forintos , H. ; Körtvé lyesi , T. Synthesis and reactions of β-keto phosphoranes/ylides with cyclic or acyclic P-moiety . Curr. Org. Chem. 2004 , 8 , 1245 – 1261 .
   Web of Science ®Google Scholar
• Ramazani , A. ; Kazemizadeh , A. R. ; Ahmadi , E. ; Noshiranzadeh , N. ; Souldozi , A. Synthesis and reactions of stabilized phosphorus ylides . Curr. Org. Chem. 2008 , 12 , 59 – 82 .
   Web of Science ®Google Scholar
• Keglevich , G. [4+2] versus [2+2] cycloaddition's in the sphere of P-heterocycles as useful synthetic tools . Curr. Org. Chem. 2002 , 6 , 891 – 912 .
   Web of Science ®Google Scholar
• Sahoo , M. K. Dimethyl acetylenedicarboxylate . Synlett. 2007 , 2142 – 2143 .
   Google Scholar
• Alizadeh , A. ; Rostamnia , S. ; Zhu , L.-G. Reaction between tert-butyl isocyanide, dialkyl acetylenedicarboxylates, and aromatic carboxylic acids: an efficient method for the synthesis of dialkyl (E)-2-{[benzoyl(tert-butyl)amino]carbonyl}-2-butenedioate derivatives . Tetrahedron 2006 , 62 , 5641 – 5644 .
   Web of Science ®Google Scholar
• Shaabani , A. ; Soleimani , E. ; Maleki , A. Ionic liquid promoted one-pot synthesis of 3-aminoimidazo[1,2-a]pyridines . Tetrahedron Lett. 2006 , 47 , 3031 – 3034 .
   Web of Science ®Google Scholar
• Shaabani , A. ; Teimouri , M. B. ; Bijanzadeh , H. R. One-pot three component condensation reaction in water: an efficient and improved procedure for the synthesis of furo[2,3-d]pyrimidine-2,4(1H,3H)-diones . Tetrahedron Lett. 2002 , 43 , 9151 – 9154 .
   Web of Science ®Google Scholar
• Shaabani , A. ; Yavari , I. ; Teimouri , M. B. ; Bazgir , A. ; Bijanzadeh , H. R. New and efficient synthesis of dialkyl 2-[1-p-nitrophenyl-2-(alkylamino)-2-oxoethyl]malonates . Tetrahedron 2001 , 57 , 375 – 1378 .
   Google Scholar
• Ramazani , A. ; Bodaghi , A. One-pot, four-component synthesis of dialkyl [indane-1,3-dione-2-ylidene]alkoxysuccinates . Tetrahedron Lett. 2000 , 41 , 567 – 568 .
   Web of Science ®Google Scholar
• Ramazani , A. ; Ahmadi , E. Manganese dioxide is an efficient catalyst for the stereoselective conversion of dialkyl 2-(imido-N-yl)-3-(triphenylphosphoranylidene)butanedioates to electron-poor (Z)-N-vinylimides in solvent-free conditions . Phosphorus, Sulfur Silicon Relat. Elem. 2003 , 178 , 2659 – 2661 .
   Web of Science ®Google Scholar
• Multicomponent Reactions , J. ; Zhu , H. ; Bienayme , H. (Eds.); Wiley-VCH : Weinheim , 2005 .
   Google Scholar
• Ramazani , A. ; Souldozi , A. Silica gel catalyzed conversion of dimethyl 2-(5-bromo-2-hydroxyphenyl)-3-(triphenylphosphoranylidene)butanedioate to methyl 6-bromo-2-oxo-2H-chromene-4-carboxylate in solvent-free conditions . Phosphorus, Sulfur Silicon Relat. Elem. 2003 , 178 , 2663 – 2666 .
   Web of Science ®Google Scholar
• Ramazani , A. ; Souldozi , A. Micrwave induced synthesis of coumarins from in situ generated stabilized phosphorus ylides in the presence of silica gel powder in solvent-free condition . Phosphorus, Sulfur Silicon Relat. Elem. 2004 , 179 , 529 – 533 .
   Web of Science ®Google Scholar
• Ramazani , A. ; Abbasi-Motejadded , A. ; Ahmadi , E. Microwave-induced stereoselective conversion of dialkyl 2-(1,1,3-trioxo-1,3-dihydro-2H-1,2-benzisothiazol-2-yl)-3-(triphenylphosphoranylidene)succinates to dialkyl 2-(1,1,3-trioxo-1,3-dihydro-2H-1,2-benzisothiazol-2-yl)-2-butendioates in the presence of silica-gel powder in solvent-free conditions. Phosphorus, Sulfur Silicon Relat. Elem. 2006, 181, 233–236.
   Web of Science ®Google Scholar
• Noshiranzadeh , N. ; Ramazani , A. Reaction between ortho-hydroxy aromatic aldehydes and dialkyl acetylenedicarboxylates in the presence of silica gel in solvent-free conditions: an efficient method for the synthesis of electron-poor aryl vinyl ethers and chromenes . Synth. Commun. 2007 , 37 , 3181 – 3189 .
   Web of Science ®Google Scholar
• Noshiranzadeh , N. ; Ramazani , A. The reaction of phenylhydrazine with sterically congested stabilized phosphorus ylides in the presence of silica gel powder in solvent-free conditions: A novel synthesis of fully substituted pyrazole derivatives . Phosphorus, Sulfur Silicon Relat. Elem. 2008 , 183 , 1109 – 1115 .
   Web of Science ®Google Scholar
• Ghosh , S. K. ; Hsung , R. P. ; Liu , J. An anomeric control on remote stereochemistry in the synthesis of spiroketals . J. Am. Chem. Soc. 2005 , 127 , 8260 – 8261 .
   Google Scholar