seyed meysam baghbanian - Academia.edu (original) (raw)
Papers by seyed meysam baghbanian
Cheminform, 2008
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Acta Crystallographica Section E-structure Reports Online, 2008
The mol-ecule of the title compound, C(24)H(18)O(10), a previously unknown coumarin derivative, c... more The mol-ecule of the title compound, C(24)H(18)O(10), a previously unknown coumarin derivative, contains methoxy-carbonyl, 2-butenedioate and benzoyl groups aligned at angles of 28.04 (2), 76.89 (3) and 42.48 (13)°, respectively, to the plane of the coumarin ring system. Intra-molecular O-H⋯O hydrogen bonding between hydr-oxy and carbonyl groups and weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure. The two carbon atoms and attached H atom of the ethylene bond are disordered over two positions, with site occupancy factors of ca 0.9 and 0.1.
Chinese Chemical Letters, 2011
A simple and efficient method has been developed for the synthesis of α-amino nitriles from aldeh... more A simple and efficient method has been developed for the synthesis of α-amino nitriles from aldehydes, amines and trimethylsilyl cyanide (Me3SiCN) in the presence of a catalytic amount of cyanuric acid at room temperature.
Chinese Chemical Letters, 2010
We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction... more We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction of triphenylphosphine with propiolic esters and enols or thiols (as an OH-or SH-acid) [8], [9] and [10]. With the purpose of the study of chemoselectivity in bifunctional reagents, we ...
Chinese Chemical Letters, 2010
We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction... more We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction of triphenylphosphine with propiolic esters and enols or thiols (as an OH-or SH-acid) [8], [9] and [10]. With the purpose of the study of chemoselectivity in bifunctional reagents, we ...
Letters in Organic Chemistry, 2008
2-Aryl-spiro-[5,5]-1,3,2-dioxaphosphorinane-2-sufides were prepared by the cyclization reaction o... more 2-Aryl-spiro-[5,5]-1,3,2-dioxaphosphorinane-2-sufides were prepared by the cyclization reaction of Lawesson's reagent with pentaerythritol and monobenzalpentaerythritol, respectively.
Acta Crystallographica Section E-structure Reports Online, 2008
Chinese Chemical Letters, 2010
À [16], in situ generated HCl [17], K 7 [PW 11 CoO 40 ] [18], metal triflates [19], I 2 [20] sili... more À [16], in situ generated HCl [17], K 7 [PW 11 CoO 40 ] [18], metal triflates [19], I 2 [20] silica-supported acids [21,22], ceric ammonium nitrate [23], PTSA-SDS [24], tris(pentafluorophenyl)borane [25] and boronic acids . These methods, however, suffer from drawbacks such as unsatisfactory yields, acidic or basic catalysts,
Letters in Organic Chemistry, 2007
... The Novel One-Pot Synthesis of Functionalized Vinyl Sulfides Using Triphenylphosphine Catalyz... more ... The Novel One-Pot Synthesis of Functionalized Vinyl Sulfides Using Triphenylphosphine Catalyzed Nucleophilic Addition of Thiols to Acety-lenes Robabeh Baharfar* ,a , Seyed M. Baghbanian a , Roghayeh Hossein nia a and Hamid R. Bijanzadeh b ...
Cheminform, 2008
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tetrahedron Letters, 2008
a-Hydroxy phosphonate Solvent-free a-Aminophosphonates a b s t r a c t A new and highly flexible ... more a-Hydroxy phosphonate Solvent-free a-Aminophosphonates a b s t r a c t A new and highly flexible procedure is described for the synthesis of a-aminoand a-hydroxy phosphonates. In the presence of a catalytic amount of oxalic acid (10 mol %), trimethyl phosphite reacts with aldehydes or imines (generated in situ from an aldehyde and an amine) to yield the corresponding coupled products in good yield.
Cheminform, 2009
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tetrahedron Letters, 2011
... R 4 R 4 2 An efficient one-pot synthesis of pyrimido[2,1-b][1,3]thiazine derivatives by react... more ... R 4 R 4 2 An efficient one-pot synthesis of pyrimido[2,1-b][1,3]thiazine derivatives by reaction of activated acetylenes, thiouracils and isocyanides Robabeh Baharfar * , a Seyed Meysam Baghbanian, a ... 3. El-Gaby, MSA; Abdel-Hamide, SG; Ghorab, MM; El-Sayed, SM Acta Pharm ...
Cheminform, 2008
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Acta Crystallographica Section E-structure Reports Online, 2008
The mol-ecule of the title compound, C(24)H(18)O(10), a previously unknown coumarin derivative, c... more The mol-ecule of the title compound, C(24)H(18)O(10), a previously unknown coumarin derivative, contains methoxy-carbonyl, 2-butenedioate and benzoyl groups aligned at angles of 28.04 (2), 76.89 (3) and 42.48 (13)°, respectively, to the plane of the coumarin ring system. Intra-molecular O-H⋯O hydrogen bonding between hydr-oxy and carbonyl groups and weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure. The two carbon atoms and attached H atom of the ethylene bond are disordered over two positions, with site occupancy factors of ca 0.9 and 0.1.
Chinese Chemical Letters, 2011
A simple and efficient method has been developed for the synthesis of α-amino nitriles from aldeh... more A simple and efficient method has been developed for the synthesis of α-amino nitriles from aldehydes, amines and trimethylsilyl cyanide (Me3SiCN) in the presence of a catalytic amount of cyanuric acid at room temperature.
Chinese Chemical Letters, 2010
We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction... more We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction of triphenylphosphine with propiolic esters and enols or thiols (as an OH-or SH-acid) [8], [9] and [10]. With the purpose of the study of chemoselectivity in bifunctional reagents, we ...
Chinese Chemical Letters, 2010
We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction... more We have already described the synthesis of O-vinyl, S-vinyl and N-vinyl systems from the reaction of triphenylphosphine with propiolic esters and enols or thiols (as an OH-or SH-acid) [8], [9] and [10]. With the purpose of the study of chemoselectivity in bifunctional reagents, we ...
Letters in Organic Chemistry, 2008
2-Aryl-spiro-[5,5]-1,3,2-dioxaphosphorinane-2-sufides were prepared by the cyclization reaction o... more 2-Aryl-spiro-[5,5]-1,3,2-dioxaphosphorinane-2-sufides were prepared by the cyclization reaction of Lawesson's reagent with pentaerythritol and monobenzalpentaerythritol, respectively.
Acta Crystallographica Section E-structure Reports Online, 2008
Chinese Chemical Letters, 2010
À [16], in situ generated HCl [17], K 7 [PW 11 CoO 40 ] [18], metal triflates [19], I 2 [20] sili... more À [16], in situ generated HCl [17], K 7 [PW 11 CoO 40 ] [18], metal triflates [19], I 2 [20] silica-supported acids [21,22], ceric ammonium nitrate [23], PTSA-SDS [24], tris(pentafluorophenyl)borane [25] and boronic acids . These methods, however, suffer from drawbacks such as unsatisfactory yields, acidic or basic catalysts,
Letters in Organic Chemistry, 2007
... The Novel One-Pot Synthesis of Functionalized Vinyl Sulfides Using Triphenylphosphine Catalyz... more ... The Novel One-Pot Synthesis of Functionalized Vinyl Sulfides Using Triphenylphosphine Catalyzed Nucleophilic Addition of Thiols to Acety-lenes Robabeh Baharfar* ,a , Seyed M. Baghbanian a , Roghayeh Hossein nia a and Hamid R. Bijanzadeh b ...
Cheminform, 2008
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tetrahedron Letters, 2008
a-Hydroxy phosphonate Solvent-free a-Aminophosphonates a b s t r a c t A new and highly flexible ... more a-Hydroxy phosphonate Solvent-free a-Aminophosphonates a b s t r a c t A new and highly flexible procedure is described for the synthesis of a-aminoand a-hydroxy phosphonates. In the presence of a catalytic amount of oxalic acid (10 mol %), trimethyl phosphite reacts with aldehydes or imines (generated in situ from an aldehyde and an amine) to yield the corresponding coupled products in good yield.
Cheminform, 2009
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was e... more ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tetrahedron Letters, 2011
... R 4 R 4 2 An efficient one-pot synthesis of pyrimido[2,1-b][1,3]thiazine derivatives by react... more ... R 4 R 4 2 An efficient one-pot synthesis of pyrimido[2,1-b][1,3]thiazine derivatives by reaction of activated acetylenes, thiouracils and isocyanides Robabeh Baharfar * , a Seyed Meysam Baghbanian, a ... 3. El-Gaby, MSA; Abdel-Hamide, SG; Ghorab, MM; El-Sayed, SM Acta Pharm ...