Abstract: Abstract Synth. Commun. 2003, 33, 3843 Unexpected ipso-Substitutions at the β-Carboline Nucleus Oliver Kast and Franz Bracher* Department Pharmazie, Zentrum für Pharmaforschung, Ludwig-Maximilians-Universität, Munich, Germany Minisci-type radical carbamoylation of 1-bromo-β-carboline (1) gives the 3-substituted product in low yield, whereas 1-acetyl-β-carboline (3a) reacts under ipso-substitution of the acetyl group. Cyanations of the N-oxides of 1 and 3a occur under clean ipso-substitution of the groups in 1-position. 1-Methyl derivatives show no tendency to react under ipso-substitution. Synth. Commun. 2003, 33, 3851 Iodoform, a New Reagent in the Todd-Atherton Reaction Grażyna Mielniczak and Andrzej Łopusiński* Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łódź, Poland An innovative and convenient application of the iodoform (1) as the reagent in the synthesis of phosphoramidates via Todd-Atherton reaction is described. The full stereoselectivity of this transformation using a 4-methyl-1,3,2-dioxaphosphinane model system was demonstrated. Synth. Commun. 2003, 33, 3861 Novel Method for the Synthesis of 1,2,4-Triazoles and 1,2,4-Triazol-3-ones Hanen Chouaieb, Mongi Ben Mosbah, Mohamed Kossentini, and Mansour Salem* Laboratoire de Chimie Appliquée : Hétérocycles, Corps Gras et Polymères Faculté des Sciences de Sfax, Sfax, Tunisia Synthesis of tosylated 1,2,4-triazoles 2 and 1,2,4-triazol-3-ones 3 by condensation of N 1-tosylamidrazones 1 with acethychloride and ethyl chloroformate respectively. Synth. Commun. 2003, 33, 3869 A Simple and convenient multigram scale synthesis of hydroxyphenstatin: potential cancer cell growth inhibitor Pedamallu Radha* A. V. Rama Rao Research Foundation, Habshiguda, Hyderabad, India The synthesis of Hydroxyphenstatin (2,3-dihydroxy-3′4′,5′4′-tetramethoxy-benzophenone) has been achieved by condensing 3,4,5-trimethoxybenzoic acid with pyrogallol and subsequent selective methylation. Synth. Commun. 2003, 33, 3875 Methyltrioxorhenium Catalyzed Oxidative Cleavage of α-Hydroxycarbonyl Compounds to Carboxylic Acids with Hydrogen Peroxide Suman L. Jain, Vishal B. Sharma, and Bir Sain* Chemical and Biosciences Division, Indian Institute of Petroleum, Dehradun, India Methyltrioxorhenium catalyzed oxidative cleavage of a variety of α-hydroxycarbonyl compounds with hydrogen peroxide selectively yielded corresponding carboxylic acids in excellent yields. Synth. Commun. 2003, 33, 3879 Studies on Reactivity of BisolEfinic Diketo Sulfides/Sulfones. II V. Padmavathi,* M. Rajagopala Sarma, T. V. Ramana Reddy, and D. Bhaskar Reddy Department of Chemistry, Sri Venkateswara University, Tirupati, India Different novel bispyrazolines were prepared from bis(1-aryl-2-propen-1-one) sulfide/sulfone (1/2) with diazomethane and hydrazine hydrate. Synth. Commun. 2003, 33, 3891 TiCl4, Dioxane—A Facile and Efficient System for De- O -Benzylation, De- O -Allylation, and De- O -Xylylation of Phenolic Ethers Perumal Rajakumar* and Venghatraghavan Murali Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, India Synth. Commun. 2003, 33, 3897 Selective and Practical Synthesis of Penciclovir Tatsushi Toyokuni,* Joseph C. Walsh, Mohammad Namavari, Shirin S. Shinde, Jennifer R. Moore, Jorge R. Barrio, and Nagichettiar Satyamurthy Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA Synth. Commun. 2003, 33, 3907 Direct Conversion of Trimethylsilyl and Tetrahydropyranyl Ethers into Esters with Acid Chlorides in the Presence of Montmorillonite K-10 Barahman Movassagh* and Kobra Atrak Department of Chemistry, K. N. Toosi University of Technology, Tehran, Iran A simple method is described for an efficient conversion of variety of trimethylsilyl and tetrahydropyranyl ethers into their corresponding esters with acid chlorides in the presence of montmorillonite K-10. Synth. Commun. 2003, 33, 3913 Synthesis and StrUcture Determinaiton of (2 S , 2′ S )-3-Phenyl-2-(pyrrolidin-2′-yl)propionic Acid Jin Jing Yi, Ming Hua Zheng, and Guan Rong Tian* Department of Chemistry, Yan Bian University, Yan Ji City, Ji Lin, China Synth. Commun. 2003, 33, 3919 Synthesis and Characterization of β-Diketonato Titanium Derivatives of Polyoxometalates Jianghua He, Jianxin Li, Xiaohong Wang, and Jingfu Liu* Department of Chemistry Northeast Normal University, Changchun, P.R. China Novel β-diketonato titanium derivatives of mono-lacunary Keggin and Dawson type polyoxotungstates with heteroatom P have been prepared and characterized by elementary analysis, IR, 1H NMR and 183W NMR spectrometry. The results show that the complexes still retain the Keggin and Dawson structure, respectively. Synth. Commun. 2003, 33, 3929 Solvent-Free Tetrahydropyranylation of Alcohols with sulfamic Acid as Reusable Catalyst Bo Wang, Li-Ming Yang,* and Ji-Shuan Suo State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China Tetrahydropyranylation of various alcohols with 3,4-dihydro-2H-pyran have been investigated using H2NSO3H as a cost-effective catalyst under mild and solvent-free conditions. Synth. Commun. 2003, 33, 3935 Synthesis of Novel Chalcone Analogues of Ferrocene Biarenes Qing-Bao Song,1,* Xiao-Nian Li,1 Tian-Hua Shen,1 Shang-Dong Yang,2 Gen-Rong Qiang,1 Xiao-Li Wu,2 and Yong-Xiang Ma2,* 1College of Chemical Engineering, Zhejiang Key Laboratory of Heterogeneous Catalysis, Zhejiang University of Technology, Hangzhou, P.R. China; 2National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P.R. China The chalcones 5 and 9 were synthesized via Suzuki cross-coupling reaction of bromoarene with arylboronic acid. Synth. Commun. 2003, 33, 3943 A Novel Efficient Synthesis of α-Keto Triflates Jong Chan Lee* and Yong Chan Lee Department of Chemistry, Chung-Ang University, Seoul, Korea A new efficient method for the conversion of ketones to α-keto triflates is described. Synth. Commun. 2003, 33, 3947 The Oxidation of 3-Aryl-1-Propenes by Oxidative System of RuCl3-NaIo4-Phase Transfer Catalyst Yoshifumi Yuasa,1,* Shiroshi Shibuya,2 and Yoko Yuasa2 1Technical Engineering Department, Fine Chemical Division, Takasago International Corporation, Hiratsuka, Kanagawa, Japan; 2School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Tokyo, Japan Synth. Commun. 2003, 33, 3953 Preparation of Resin-Bound Bismethylene Cyclic Malonic Acid Ester and Facile Solid-Phase Synthesis of 2-Alkylthio-4(1 H )-Quinolone and 2-Alkyl-4(1 H )-Quinolone Jing Tang1 and Xian Huang1,2,* 1Department of Chemistry, Zhejiang University, Campus Xixi, Hangzhou, P.R. China; 2Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai, P.R. China Synth. Commun. 2003, 33, 3961 A Mild and Efficient Oxidation of Alcohols to Ketones with Iodosobenzene/(Salen) Manganese Complex Sung Soo Kim* and Galina Borisova Department of Chemistry and Center for Chemical Dynamics, Inha University, Incheon, South Korea Synth. Commun. 2003, 33, 3969 First Synthesis of Some New 1-Aryl-4-Ethoxycarbonyl-5-DimethylaminomethyleneamiNo-1,2,3-triazole Under Vilsmeier Conditions Mindong Chen,1,* Youfei Zheng,1 Guizhi Gao,1 Shuxian Fan,1 and Shijie Lu2 1Department of Environmental Science, Nanjing Institute of Meteorology, Nanjing, P.R. China; 2State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China Synth. Commun. 2003, 33, 3977 A Novel Catechol Compound, an Unusual Side Reaction Product of a β-Ketoester with Pyruvic Aldehyde and Its Inhibition by Sodium Dithionite Takeaki Kato,2 Masao Mochizuki, Shigeru Okano,‡ and Noritada Matsuo1,* 1Agricultural Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd., Takarazuka, Hyogo, Japan; 2Matsugaki Chemical Industries Co. Ltd., Kita-ku, Osaka, Japan The structure of an usual catechol byproduct in the aldol condensation of the salt of 3-oxo-6-heptenoate and pyruvic aldehyde, and the discovery of an additive to inhibit its formation are described. Synth. Commun. 2003, 33, 3983 High-Throughput Synthesis of Alkylbenzophenones with Indium Triflate in the Absence of Solvents Using Microwave Hideko Koshima* and Masashi Kubota Department of Applied Chemistry, Faculty of Engineering, Ehime University, Matsuyama, Japan Solvent-free Friedel-Crafts acylation catalyzed with indium triflate by microwave heating is reported. Synth. Commun. 2003, 33, 3989 Synthesis of Polysubstituted Pyrimidines from Ketene Dithioacetals Using KF/Al2O3 Catalyst Shen-Yi Yu* and Ya-Xian Cai The Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology, Beijing, P.R.China Synth. Commun. 2003, 33, 3997 A Simple Preparation of DiArylmethanes by Oxidative Friedel-Crafts Reaction of Methyl-Substituted Benzenes with o -Chloranil Tomoshige Kobayashi* and Sheikh Maksudur Rahman Department of Chemistry, Faculty of Science, Shinshu University, Matsumoto, Japan Oxidative Friedel-Crafts reaction of methyl-substituted benzenes with o-chloranil provided substituted diphenylmethanes.
Publication Year: 2003
Publication Date: 2003-12-01
Language: en
Type: article
Indexed In: ['crossref']
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