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Abstract
Synth. Commun. 2004, 34, 557
5‐Amino‐2H‐Pyran‐3(6H)‐One, 1, A Convenient Intermediate in the Synthesis of Pyran Containing 1,4‐Dihydropyridines
Robert J. Altenbach, Konstantinos Agrios, Irene Drizin, and William A. Carroll
Abbott Laboratories, Neuroscience Research, Global Pharmaceutical Research and Development, Abbott Park, Illinois, USA
5‐Amino‐2H‐pyran‐3(6H)‐one, 1, is a novel intermediate that is useful in the synthesis of pyran containing dihydropyridines. The synthesis and use of 1 will be discussed.
Abstract
Synth. Commun. 2004, 34, 571
Synthesis of N‐Thiophosphoryl Amino Acids Via Phosphoramidite Amine‐Exchange
Jack Maung, Tammy Y. Campbell, Charlene C. Shieh, and Clifford E. Berkman
Department of Chemistry & Biochemistry, San Francisco State University, San Francisco, California, USA
N‐Thiophosphoryl amino acids were prepared in high yield via 1H‐tetrazole‐mediated phosphoramidite amine‐exchange, thionation with sulfur, and subsequent deprotection with LiOH.
Abstract
Synth. Commun. 2004, 34, 589
Crude D‐(+)‐Glyceraldehyde Obtained from D‐Mannitol‐Diacetonide by Oxidative Cleavage with Sodium Periodate: Its Reactions with Nucleophilic Species
Jorge L. de O. Domingos,1 Gujiherme V. M. de A. Vilela,1 Paulo R. R. Costa,1 and Ayres G. Dias2
1NPPN‐UFRJ, Rio de Janeiro, Brazil; 2DQO‐UERJ, Rio de Janeiro, Brazil
The oxidative cleavage of D‐(+)‐mannitol‐diacetonide with sodium periodate lead to a mixture of (D)‐(+)glyceraldehyde (2), its hydrate and oligomeric derivatives.
Abstract
Synth. Commun. 2004, 34, 599
Magnesium‐Catalyzed Proficient Reduction of Oximes to Amines Using Ammonium Formate
K. Abiraj and D. Channe Gowda
Department of Studies in Chemistry, University of Mysore, Manasagangotri, Karnataka, Mysore, India.
Oximes are selectively reduced to their corresponding amines in the presence of other functional groups, by employing magnesium powder and ammonium formate. The reduction is fast, mild, clean, cost effective and high yielding.
Abstract
Synth. Commun. 2004, 34, 607
An Efficient Procedure for Preparation of C‐ and N‐Protected 1‐Aminocyclobutane Carboxylic Acid
June J. Kim and Michael R. Wood
Department of Medicinal Chemistry, Merck Research Laboratories, West Point, Philadelphia, USA
Abstract
Synth. Commun. 2004, 34, 625
A Formal [3+2] Alkene Addition to Benzhydrol Cations. A Practical and Mild Methodology for the Synthesis of Substituted 1‐Arylindanes and Related Compounds
Beatriz Lantaño,1 Jose M. Aguirre,2 Liliana Finkielsztein,1 Elba N. Alesso,1 Ernesto Brunet,3 and Graciela Y. Moltrasio1
1Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
2Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Argentina
3Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, España
Abstract
Synth. Commun. 2004, 34, 643
Pd/C‐Catalyzed Transfer‐Hydrogenation of Benzaldehydes to Benzyl Alcohols Using Potassium Formate as the Selective Hydrogen Donor
Mubeen Baidossi,1 Ashutosh V. Joshi,1 Sudip Mukhopadhyay,2 and Yoel Sasson1
1Casali Institute of Applied Chemistry, Hebrew University, Jerusalem, Israel
2Department of Chemical Engineering, University of California, Berkeley, California, USA
Abstract
Synth. Commun. 2004, 34, 657
A Facile Synthesis of (E,Z)‐3‐Chloro‐2‐Propenamides, Acids, and Esters from 2,3‐Acetylenic Acids with Oxalyl Chloride in DMF
Neudo A. Urdaneta, José Salazar, Julio C. Herrera, and Simón E. López
Departamento de Química, Universidad Simón Bolívar, Sartenejas‐Baruta, Caracas, Venezuela
A simple route is described for the synthesis of E and Z 3‐chloro‐2‐propenamides, acids and esters by the reaction of 2,3‐acetylenic acids with oxalyl chloride in DMF followed by treatment of the corresponding 3‐chloro‐2‐propenoyl chloride derivative with amines, water and alcohol.
Abstract
Synth. Commun. 2004, 34, 665
Synthesis and Characterization of Some α,β‐Didehydroamino Acid Derivatives
Guifa Su,1,2 Chengxue Pan,2 Hengshan Wang,2 and Longmei Zeng1
1College of Chemistry & Chemical Engineering, Zhongshan University, Canton, P.R. China
2College of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, P.R. China
Five α,β‐didehydroamino acid derivatives were synthesized and characterized.
Abstract
Synth. Commun. 2004, 34, 673
A Mild and Convenient Synthetic Method for Arylhydrazones of Methyl Benzoate
G. S. Zhang and Z. Suo
Department of Biochemistry, The Ohio State University, Columbus, Ohio, USA
A series of ester arylhydrazones were prepared by treating methyl benzimidate hydrochloride with arylhydrazine hydrochlorides. Treatment of benzimidate hydrochloride with a mixture of arylhydrazine hydrochlorides and sodium methoxide in absolute methanol at room temperature produced the arylhydrazones of methyl benzoate with moderate yield.
Abstract
Synth. Commun. 2004, 34, 679
Synthesis of Nitrogen‐Containing Chiral Calix[4]arene Crown and Semi‐Crown Ether
Y. S. Zheng, C. Zhang, Z. F. Tian, and A. Jiang
Department of Chemistry, Huazhong University of Science and Technology, Wuhan, P.R. China
Abstract
Synth. Commun. 2004, 34, 689
An Improved Total Synthesis of PET HSV‐tk Gene Reporter Probe 9‐(4‐[18F]Fluoro‐3‐Hydroxymethylbutyl)Guanine ([18F]FHBG)
Qi‐Huang Zheng,1 Ji‐Quan Wang,1 Xuan Liu,1 Xiangshu Fei,1 Bruce H. Mock,1 Barbara E. Glick‐Wilson,1 Michael L. Sullivan,1 Sudhanshu P. Raikwar,2 Thomas A. Gardner,2 Chinghai Kao,2 and Gary D. Hutchins1
Departments of 1Radiology and 2Urology, Indiana University School of Medicine, Indianapolis, Indiana, USA
Abstract
Synth. Commun. 2004, 34, 705
A Study of the Aryl–Aryl Coupling Reactions of (4‐X‐C6H4)Ph2P˭O
Michaela Czupik, Nathaniel Bankey, and Eric Fossum
Department of Chemistry, Wright State University, Dayton, Ohio, USA
A variety of biphenyl substituted triarylposphine oxide derivatives were synthesized in good to excellent yields by the palladium catalyzed Suzuki coupling reaction of (4‐X‐C6H4)Ph2P˭O with aryl boronic acids.
Abstract
Synth. Commun. 2004, 34, 721
Mo(CO)6 Mediated Selective Reduction of Azides and Nitro Compounds to Amines Under Neutral Conditions
Suresh Iyer and Girish M. Kulkarni
Organic Chemistry Synthesis Division, National Chemical Laboratory, Pune, India
Abstract
Synth. Commun. 2004, 34, 727
Zirconium (IV) Chloride Catalyzed Ring Opening of Epoxides with Aromatic Amines
N. Raghavendra Swamy, T. Venkateshwar Goud, S. Malla Reddy, P. Krishnaiah, and Y. Venkateswarlu
Organic Chemistry Division‐I, Natural Products Laboratory, Indian Institute of Chemical Technology, Hyderabad, India
Abstract
Synth. Commun. 2004, 34, 735
A Novel Method for the Synthesis of 2(3H)‐Benzimidazolones, 2(3H)‐Benzoxazolone and 2(3H)‐Benzothiazolone via in situ Generated Ortho Substituted Benzoic Acid Azides: Application of Ammonium Azide and Vilsmeier Complex for Acid Azide Generation
Radhakrishnan Sridhar and Paramasivan T. Perumal
Organic Chemistry Division, Central Leather Research Institute, Chennai, India
An easy and generalized route to 2(3H)‐benzimidazolones, 2(3H)‐benzoxazolone and 2(3H)‐benzothiazolone is attempted.
Abstract
Synth. Commun. 2004, 34, 743
Lithium/Sodium Perchlorate Catalyzed Synthesis of Symmetrical Diaryl Sulfoxides
B. P. Bandgar and S. S. Makone
Organic Chemistry Research Laboratory, School of Chemical Sciences, S.R.T.M. University, Nanded, India
Synthesis of diaryl sulfoxides from aromatics and thionyl chloride catalyzed by LiClO4/NaClO4 is described. Mild reaction conditions, simple work‐up, inexpensive and easily available catalysts are important and attractive features of this method.
