云南高校图书馆联盟文献共享服务平台- DIHYDROPYRIMIDINONE

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一个简单、环境友好的硅胶固载硫酸催化Biginelli反应体系(英文)被引量：1: 《催化学报》2012年第9期1542-1545,共4页Mahmood TAJBAKHSH Yousef RANJBAR Abdolhosein MASUODI Samad KHAKSAR; supported by the Research Council of Payame Noor University; A protocol for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and-thiones was developed by means of a three-component condensation of an aldehyde,a β-dicarbonyl compound,and urea or thiourea in acetic acid catalyze...; 关键词：BIGINELLI REACTION silica-bonded S-sulfonic ACID DIHYDROPYRIMIDINONE

Diketene-based neat four-component synthesis of the dihydropyrimidinones and dihydropyridine backbones using silica sulfuric acid(SSA)被引量：4: 《Chinese Chemical Letters》2012年第8期930-932,共3页Sadegh Rostamnia Kamran Lamei; Heterocyclic skeleton building blocks to afford dihydropyrimidinones and dihydropyridines based on neat adducts of diketene, alcohols and aldehydes via silica sulfuric acid （SSA） catalyzed ring opening of diketene i...; 关键词：Diketene DIHYDROPYRIMIDINONE Dihydropyridine Heterocyclic skeleton Silica sulfuric acid

Pineapple Juice as a Natural Catalyst: An Excellent Catalyst for Biginelli Reaction被引量：1: 《International Journal of Organic Chemistry》2011年第3期125-131,共7页Suresh Patil Swati D. Jadhav Sanjeevani Y. Mane; An efficient and greener synthesis of a series of dihydropyrimidinone (DHPMs) derivatives were accomplished via three-component one-pot cyclocondensation between substituted aryl aldehydes, diketone/ke- toester and ur...; 关键词：BIGINELLI NATURAL CATALYST PINEAPPLE JUICE DIHYDROPYRIMIDINONE

Oxidation of 3,4-dihydropyrimidin-2(1H)-ones with nitrosonium(NO^+): 《Chinese Chemical Letters》2009年第10期1183-1186,共4页Rui Rui Liang Guai Li Wu Wen Tao Wu Long Min Wu; Project No.20572040 was supported by National Natural Science Foundation of China; 3,4-Dihydropyrimidin-2（1H）-ones （DHPMs） were oxidized with 1.2 equiv, of nitrosonium tetrafluoroborate （NO^＋BF4^-） to pyrimidin-2（1H）-ones in acetonitrile at room temperature in high yields.; 关键词：DIHYDROPYRIMIDINONE NITROSONIUM OXIDATION

A green synthesis of dihydropyrimidinones by Biginelli reaction over Nafion-H catalyst被引量：2: 《Chinese Chemical Letters》2007年第5期502-504,共3页Hai Xia Lin Qing Jie Zhao Bin Xu Xiao Hong Wang; A Nation-H catalyzed, single step and environmentally friendly process for synthesis of dihydropyrimidinones is described. This adopted protocol for Biginelli reaction has the advantages of reusability of the catalyst...; 关键词：Nation-H DIHYDROPYRIMIDINONE Biginelli reaction CATALYSIS

One-pot Synthesis and Characterization of 13-Acetyl-9-methyl-11-oxo-8- oxa- 10,12-d iazatricyclo [7.3.1.0^2,7] trideca- 2,4,6- triene: 《Chinese Journal of Chemical Physics》2006年第1期84-88,共5页Hojatollah Salehi Qian-rong Li Qing-xiang Guo; This work was supported by the Natural Science Foundation of China （No.20425309）.; An efficient and environmentally friendly procedure for the one-pot synthesis of 13-acetyl-9-methyl-ll-oxo-8-oxa-10,12-diazatricyclo[7.3.1.0^2,7]trideca-2,4,6-triene from salicylaldehyde, acetylacetone and urea via Bi...; 关键词：Oxygen-bridged dihydropyrimidinone Intramolecular Michael-addition One-pot solvent-free synthesis NMR EI-TOFMS

One-pot Synthesis of Bis（dihydropyrimidinone-4-yl）benzene Using Boric Acid as a Catalyst被引量：1: 《Chinese Journal of Chemistry》2005年第5期596-598,共3页屠树江朱晓彤章晓镜朱松磊李团结史达清王香善纪顺俊

Studies on Fragmentation Regularity of 5-Methoxycarbonyl- 4-substituted-6-methyl-3,4-dihydropyrimidin-2(1H)-ones by Time-of-flight Mass Spectrometry: 《Chemical Research in Chinese Universities》2004年第6期729-733,共5页LIQian-rong SALEHIHojatollah YINHao GUOQing-xiang; National Natural Science Foundation of China(No.2 0 332 0 2 0 ); The electron impact time-of-flight(TOF) mass spectra of the title compounds were studied to establish their fragmentation processes. With the high resolution of the TOF instrument, the exact mass for each fragment was...; 关键词：3 4-Dihydropyrimidinone Time-of-flight mass spectrometry Electron impact

Synthesis and Crystal Structure of 4-(4-Chlorophenyl)-6-methyl-5-methoxy-caronyl-3,4-dihydropyrimidin-2(H)-one被引量：1: 《Chinese Journal of Structural Chemistry》2004年第11期1295-1299,共5页华国平屠树江房芳屠蔓苏史达清王香善纪顺俊张勇; This work was supported by the NNSFC (No. 20372057); Natural Science Foundation of Jiangsu Province (No. BK2001142); the Open Foundation of Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry and Chemical Engineering; Su; The title compound 4-(4-chlorophenyl)-6-methyl-5-methoxy-caronyl-3,4-dihydro- pyrimidin-2(H)-one has been synthesized by the reaction of 4-chlorobenzaldehyde, methyl acetoa- cetate and urea using H3BO3 as a catalyst...; 关键词：microwave irradiation 3 4-dihydropyrimidinone H3BO3 crystal structure

Synthesis under Microwave Irradiation and Crystal Structure of 4-(3,4-Methylenedioxylphenyl)-6-methyl- 5-ethoxycaronyl-3,4-dihydropyrimidin-2(H)-one被引量：1: 《Chinese Journal of Structural Chemistry》2004年第5期494-497,共4页TUShu-Jiang FANGFang JIANGHong ZHUSong-Lei LITuan-Jie ZHANGXiao-Jing SHIDa-Qing; Supported by the National Natural Science Foundation of China (No. 20372057); Natural Science Foundation of Jiangsu Province (No. BK2001142) and the Natural Science Foundation of Jiangsu Education Department (No. 01KJB150008) and Jiangsu Provincial; The title compound 4-(3,4-methylenedioxylphenyl)-6-methyl-5-ethoxycaronyl-3,4- dihydropyrimidin-2(H)-one (C15H16N2O5) has been synthesized and determined by single-crystal X-ray diffraction. The crystal is of triclini...; 关键词：microwave irradiation 3 4-dihydropyrimidinone toluene-p-sulfonic acid (TsOH) crystal structure

DIHYDROPYRIMIDINONE