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Abstract
Graphical Abstract Section
Abstract
Synth. Commun. 2007, 37, 533
SYNTHESIS OF β‐SECRETASE INHIBITORS CONTAINING A HYDROXYETHYLENE DIPEPTIDE ISOSTERE
Takuzo Komiyama, Yutaka Takaguchi, and Sadao Tsuboi
Department of Material and Energy Science, Graduate School of Environmental Science, Okayama University, Okayama, Japan
Abstract
Synth. Commun. 2007, 37, 537
CONVENIENT ONE‐POT PROTOCOL FOR AN EXCLUSIVE SYNTHESIS OF 4‐CYANO/ETHOXYCARBONYL‐2,2‐DIMETHYL‐2H‐CHROMENE AND/OR 3‐CYANO/ETHOXYCARBONYL‐2‐ISOPROPYL‐BENZO[B]FURAN FROM A SINGLE OXO‐YLIDE
V. V. V. N. S. Rama Rao, R. Yadla, and P. Shanthan Rao
Fluoroorganics Division, Indian Institute of Chemical Technology, Hyderabad, India
Abstract
Synth. Commun. 2007, 37, 547
NEW AND IMPROVED SYNTHESIS OF MONTELUKAST, AN ANTI‐ASTHMATIC DRUG
Bollikonda Satyanarayana, Padi Pratap Reddy
Research and Development Centre, Dr. Reddy's Laboratories Limited, Bulk Actives Unit 1V, IDA, Jeedimetla, Hyderabad, India
Abstract
Synth. Commun. 2007, 37, 553
CATALYTIC APPROACH FOR THE SYNTHESIS OF BIS‐CALIXARENES
Y. K. Agrawal and S. K. Bhatt
Analytical Laboratory, Institute of Pharmacy and Faculty of Science, Nirma University of Science and Technology, Ahmedabad, India
Three new tail‐to‐tail linked bis‐calix[6]arenas joined via ether linkages have been synthesized. These biscalix[6]arene have been characterized by 1H NMR, 13C NMR, and mass spectroscopy and elemental analysis.
Abstract
Synth. Commun. 2007, 37, 561
RADICAL CYCLIZATION ROUTE TO THE STEREOSELECTIVE SYNTHESES OF (+)‐TRANS‐COGNAC LACTONE AND (+)‐TRANS‐AERANGIS LACTONE
Gowravaram Sabitha, M. Bhikshapathi, and J. S. Yadav
Organic Division I, Indian Institute of Chemical Technology, Hyderabad, India
Abstract
Synth. Commun. 2007, 37, 571
SIMPLE, EFFICIENT, AND STEREOSELECTIVE OXIDATION OF TRIPHENYLFURANS TO cis‐BUT‐2‐ENE‐1,4‐DIONES
John P. Rappai, Sreedharan Prathapan, Manthitta V. Vishnu Unni, and Perupparampil A. Unnikrishnan
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India
Abstract
Synth. Commun. 2007, 37, 575
FLY‐ASH‐SUPPORTED SYNTHESIS OF 2‐MERCAPTOBENZOTHIAZOLE DERIVATIVES UNDER MICROWAVE IRRADIATION
Hemant P. Narkhede, Uttam B. More, Dipak S. Dalal, Nilesh S. Pawar, Dhananjay H. More, and Pramod P. Mahulikar
School of Chemical Sciences, North Maharashtra University, Jalgaon, India
Microwave‐assisted, solvent‐free alkylation and acylation of 2‐mercaptobenzothiazole has been attempted using silica gel, alumina, and a new solid support, fly ash. Fly ash, a waste generated at thermal power stations, could be used as solid support just as efficiently as commercial supports. The additional features of methodology include a much faster reaction, easy workup, higher yields, higher purity of the products, and an ecofriendly approach.
Abstract
Synth. Commun. 2007, 37, 581
REGIOSELECTIVE AROMATIC ELECTROPHILIC BROMINATION WITH DIOXANE DIBROMIDE UNDER SOLVENT‐FREE CONDITIONS
Subrata Kumar Chaudhuri, Sanchita Roy, M. Saha, and Sanjay Bhar
Department of Chemistry, Organic Chemistry Section, Faculty of Science, Jadavpur University, Kolkata, India
Abstract
Synth. Commun. 2007, 37, 587
CONVENIENT SYNTHESIS OF 3,5‐DISUBSTITUTED ISOXAZOLES
Reshma F. Kurangi,1 Rima Kawthankar,2 Sufala Sawal,2 Vidya G. Desai,2 and Santosh G. Tilve1
1Department of Chemistry, Goa University, Goa, India
2Department of Chemistry, Dnyanprassarak Mandal's College of Arts, Science and Commerce, Assagao, Mapusa, Bardez, Goa, India
A convenient procedure for the preparation of 3,5‐disubstituted isoxazoles from α,β‐unsaturated ketoximes using MnO2 is described.
Abstract
Synth. Commun. 2007, 37, 591
CADMIUM CHLORIDE (CDCL2): AN EFFICIENT CATALYST FOR CONJUGATE ADDITION OF AMINES TO ELECTRON‐POOR ALKENES
Medamoni Vijender, P. Kishore, and B. Satyanarayana
Department of Chemistry, University College of Engineering, Osmania University, Tarnaka, Hyderabad, India
Abstract
Synth. Commun. 2007, 37, 595
EFFICIENT AND ECOFRIENDLY PROTOCOL FOR TETRAHYDROPYRANYLATION/DEPYRANYLATION OF ALCOHOLS IN THE PRESENCE OF TIN(II) CHLORIDE DIHYDRATE
Dipankoj Gogoi, Nabajyoti Baruah, and Ghanashyam Bez
Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, India
Tetrahydropyranylation of alcohols in the presence of a catalytic amount of SnCl2 · 2H2O needs simple filtration through a short silica column on purification. Depyranylation can also be achieved by adding methanol under similar reaction conditions.
Abstract
Synth. Commun. 2007, 37, 601
CETYLTRIMETHYLAMMONIUM BROMOCHROMATE: A NEW AND EFFICIENT OXIDANT FOR ORGANIC SUBSTRATES
Shahriar Ghammamy, Hossein Eimanieh, and Mohammad Kazem Mohammady
Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
Abstract
Synth. Commun. 2007, 37, 609
SUBSTITUTED QUINOLINONES, PART 11: EFFICIENT SYNTHESIS OF DIFFERENT 3‐(4‐ARYLIDENE AND HETARYLIDENE‐5‐OXOPYRAZOLIN‐3‐YL)QUINOLIN‐2‐ONES
Mohamed Abass,1 Elham S. Othman,2 and Akram Hassan1
1Department of Chemistry, Faculty of Education, Ain Shams University, Cairo, Egypt
2Department of Chemistry, Girls Faculty of Education, Abha, Saudi Arabia
3‐Pyrazolinylquinolinone I and its chromenylmethylene derivative II were synthesized and used for obtaining novel arylidene and hetarylidenepyrazolinylquinolinone derivatives III.
Abstract
Synth. Commun. 2007, 37, 625
DIRECT SYNTHESIS OF AROMATIC NITRILES FROM ALDEHYDES USING HYDROXYLAMINE AND OXALYL CHLORIDE
Barahman Movassagh1,2 and Azadeh Fazeli1
1Department of Chemistry, K. N. Toosi University of Technology, Tehran, Iran
2Kermanshah Oil Refining Company, Kermanshah, Iran
Various aromatic and heterocyclic nitriles were prepared in a direct one‐pot process by heating corresponding aldehydes with hydroxylamine and oxalyl chloride as reagents.
Abstract
Synth. Commun. 2007, 37, 631
TRIFLOUROACETIC ACID AS AN EFFICIENT CATALYST FOR THE SYNTHESIS OF QUINOLINE
Ahmad Shaabani, Ebrahim Soleimani, and Zahra Badri
Department of Chemistry, Shahid Beheshti University, Tehran, Iran
Abstract
Synth. Commun. 2007, 37, 639
SYNTHESIS OF NEW 1,3‐BIS(HETEROARYL)‐4,5‐IMIDAZOLIDINEDIONES THROUGH REACTION OF N,N′‐BIS(HETEROARYL)METHANEDIAMINES WITH OXALYL CHLORIDE
Mehdi Ghandi and Farshid Salimi
School of Chemistry, University College of Science, University of Tehran, Tehran, Iran
A facile method for synthesizing 1,3‐bis(heteroaryl)‐4,5‐imidazolidinediones is described.
Abstract
Synth. Commun. 2007, 37, 647
CHEMOSELECTIVE SYNTHESIS OF ASYMMETRICAL CARBONATE FROM ALCOHOL AND DIMETHYL CARBONATE CATALYZED YTTERBIUM(III) TRIFLATE
Chuanming Yu, Baocheng Zhou, Weike Su, and Zhenyuan Xu
College of Pharmaceutical Sciences, Zhejiang University of Technology, Zhejiang Key Laboratory of Pharmaceutical Engineering, Hangzhou, P.R. China
Catalyzed by ytterbium(III) triflate, asymmetrical carbonate can be chemoselectively synthesized from alcohols and dimethyl carbonate (DMC) in moderate to good yield under the mild condition.
