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Amberlyst-15®: An Efficient, Cost-Effective and Recyclable Hetero Geneous Solid Acid Catalyst for the Synthesis of β-Enaminones and β- Enamino Esters Amberlyst-15®:一种高效、经济、可回收的杂相固体酸催化剂，用于合成β-烯胺酮和β-烯胺酯
The Open Catalysis Journal Pub Date : 2011-02-15 DOI: 10.2174/1876214X01104010043
A. Narsaiah, A. R. Reddy, B. Reddy, J. Yadav
{"title":"Amberlyst-15®: An Efficient, Cost-Effective and Recyclable Hetero Geneous Solid Acid Catalyst for the Synthesis of β-Enaminones and β- Enamino Esters","authors":"A. Narsaiah, A. R. Reddy, B. Reddy, J. Yadav","doi":"10.2174/1876214X01104010043","DOIUrl":"https://doi.org/10.2174/1876214X01104010043","url":null,"abstract":"The  -keto carbonyl compounds rapidly react with a variety of amines in the presence of Amberlyst-15  to produce  -enamino compounds in excellent yields. The reaction conditions are very mild and applicable to a wide range of substrates and the reactions are conveniently performed at ambient temperature. The catalyst is recovered by simple filtration and reused for further reactions.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"23 1","pages":"43-46"},"PeriodicalIF":0.0,"publicationDate":"2011-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87797462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Some Fused/Isolated Heterocyclic of Pyrimidine, β-Lactam, Thiazolidine and Triazine Derivatives 一些嘧啶、β-内酰胺、噻唑烷和三嗪衍生物的融合/分离杂环
The Open Catalysis Journal Pub Date : 2011-02-08 DOI: 10.2174/1876214X011040100018
H. Soleiman
{"title":"Some Fused/Isolated Heterocyclic of Pyrimidine, β-Lactam, Thiazolidine and Triazine Derivatives","authors":"H. Soleiman","doi":"10.2174/1876214X011040100018","DOIUrl":"https://doi.org/10.2174/1876214X011040100018","url":null,"abstract":"Fused/isolated heterocyclic of pyrimidine  -lactam, thiazolidine and triazine derivatives incorporating benzpyrimidine derivatives have been synthesized by different method reactions (cycloaddition reaction, condensation reaction and cyclocondensation elimination reaction) of cinnamonitrile, aromatic aldehydes, chloroacetyl chloride, thioglycolic acid and nitroso compounds, respectively.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"34 1","pages":"18-26"},"PeriodicalIF":0.0,"publicationDate":"2011-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89866684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Kinetics and Mechanism of Ruthenium(III) Catalyzed Oxidation of LProline by Hexacyanoferrate(III) in Aqueous Alkali 六氰高铁酸盐(III)在水溶液中钌(III)催化氧化l脯氨酸的动力学及机理
The Open Catalysis Journal Pub Date : 2011-01-28 DOI: 10.2174/1876214X01104010001
K. Sharanabasamma, Mahantesh A. Angadi, S. M. Tuwar
{"title":"Kinetics and Mechanism of Ruthenium(III) Catalyzed Oxidation of LProline by Hexacyanoferrate(III) in Aqueous Alkali","authors":"K. Sharanabasamma, Mahantesh A. Angadi, S. M. Tuwar","doi":"10.2174/1876214X01104010001","DOIUrl":"https://doi.org/10.2174/1876214X01104010001","url":null,"abstract":"Kinetics of ruthenium(III) catalyzed oxidation of L-proline by hexacyanoferrate(III)(HCF) in alkali was studied spectrophotometrically at 30 0 C. A reaction was found to be independent upon (L-proline). The reaction was occurred without intervening free radical. Since unit order each in (Ru(III)) and (HCF), the oxidation follows an outer-sphere mechanism. A suitable mechanism was proposed and rate law was derived as kobs = kK","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"30 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2011-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72868950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Catalytic Conversion of Isopropanol and CO Oxidation in Presence of NiO Supported on Modified Cordierite 改性堇青石负载NiO催化异丙醇转化及CO氧化
The Open Catalysis Journal Pub Date : 2011-01-28 DOI: 10.2174/1876214X01104010009
S. A. El-Molla, G. El-Shobaky, Y. Fahmy, H. G. El-Shobaky
{"title":"Catalytic Conversion of Isopropanol and CO Oxidation in Presence of NiO Supported on Modified Cordierite","authors":"S. A. El-Molla, G. El-Shobaky, Y. Fahmy, H. G. El-Shobaky","doi":"10.2174/1876214X01104010009","DOIUrl":"https://doi.org/10.2174/1876214X01104010009","url":null,"abstract":"A commercial cordierite sample showed a small catalytic activity in isopropanol conversion carried out at 150- 350 oC and no measurable activity in CO oxidation by O2. On the other hand, supporting NiO on Al2O3-modified cordierite resulted in the formation of an active solid that having good catalytic activity in isopropanol conversion and CO oxidation by O2. These two reactions were carried out at 150-350 and 200 oC, respectively. The results revealed that the catalyst containing 5% (w/w) NiO showed the highest activity in the alcohol conversion and acted as selective dehydration catalyst. The catalyst sample containing 20% NiO (w/w) exhibited a good activity in CO oxidation by O2 which decreased progressively by increasing its calcination temperature within 350-600 oC. Al2O3-treated cordierite dissolved a portion of NiO in its lattice, increasing the calcination temperature within 350-600 oC increases the dissolution of NiO in the matrix of Al2O3-modified cordierite system.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"29 1","pages":"9-17"},"PeriodicalIF":0.0,"publicationDate":"2011-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75557293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A Simple and Efficient Oxidant Pd(OAc) 2 Catalyzed Selective Oxidation of Alkyl/Benzyl Alcohols in Presence of Air Using Recyclable Room-Temperature Ionic Liquid (RTIL) 简单高效的氧化剂Pd(OAc) 2催化可循环室温离子液体(RTIL)在空气存在下选择性氧化烷基/苯甲醇
The Open Catalysis Journal Pub Date : 2010-10-29 DOI: 10.2174/1876214X01003010092
M. Anand, Monika Gupta, A. Gupta, Rajive Gupta
{"title":"A Simple and Efficient Oxidant Pd(OAc) 2 Catalyzed Selective Oxidation of Alkyl/Benzyl Alcohols in Presence of Air Using Recyclable Room-Temperature Ionic Liquid (RTIL)","authors":"M. Anand, Monika Gupta, A. Gupta, Rajive Gupta","doi":"10.2174/1876214X01003010092","DOIUrl":"https://doi.org/10.2174/1876214X01003010092","url":null,"abstract":"Trimethyl pyrazolium tetrafluoroborate room-temperature ionic liquid was prepared and employed for the selective oxidation of alkyl/benzyl alcohols using palladium acetate by stirring at room-temperature in presence of air (oxygen from air). This green procedure gave products in moderate to good yields. Moreover, the synthesized 1,3,5- trimethylpyrazolium tetrafluoroborate ionic liquid could be recycled for at least three runs without the loss of significant activity.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"17 1","pages":"92-97"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75628333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
H3PW12O40: Highly Efficient Catalysts for the Synthesis of Novel 1,3,5-Triaryl-2-Pyrazoline Derivatives H3PW12O40:合成新型1,3,5-三芳基-2-吡唑啉衍生物的高效催化剂
The Open Catalysis Journal Pub Date : 2010-10-29 DOI: 10.2174/1876214X01003010079
R. Fazaeli, H. Aliyan, Maryam Bordbar, Esmaeel Mohammadi
{"title":"H3PW12O40: Highly Efficient Catalysts for the Synthesis of Novel 1,3,5-Triaryl-2-Pyrazoline Derivatives","authors":"R. Fazaeli, H. Aliyan, Maryam Bordbar, Esmaeel Mohammadi","doi":"10.2174/1876214X01003010079","DOIUrl":"https://doi.org/10.2174/1876214X01003010079","url":null,"abstract":"A series of novel 1,3,5-triaryl-2-pyrazoline derivatives has been synthesized by the reaction of chalcone and phenylhydrazine in high yields. The structures of compounds obtained were determined by IR and 1 H NMR spectra.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"114 1","pages":"79-82"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88115309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
One Step Synthesis of 6-Amino-5-Cyano-4-Phenyl-2-Mercapto Pyrimidine Using Phosphorus Pentoxide 五氧化二磷一步法合成6-氨基-5-氰基-4-苯基-2-巯基嘧啶
The Open Catalysis Journal Pub Date : 2010-10-29 DOI: 10.2174/1876214X01003010083
D. R. Patil, Sonali M. Salunkhe, M. Deshmukh, P. Anbhule
{"title":"One Step Synthesis of 6-Amino-5-Cyano-4-Phenyl-2-Mercapto Pyrimidine Using Phosphorus Pentoxide","authors":"D. R. Patil, Sonali M. Salunkhe, M. Deshmukh, P. Anbhule","doi":"10.2174/1876214X01003010083","DOIUrl":"https://doi.org/10.2174/1876214X01003010083","url":null,"abstract":"A simple and efficient approach towards one step synthesis of 6-amino-5-cyano-4-phenyl-2-mercapto pyrimidine and its hydroxyl derivatives have been developed by three component condensation of aromatic aldehydes, malononitrile and thiourea/urea in presence of phosphorus pentoxide (Scheme 1).","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"1 1","pages":"83-86"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85391188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
The Novel Application of Chiral α-Ethylphenyl Amine Tartaric Acid Salts-Cyanosilylation of Prochiral Aldehydes 手性α-乙基苯基胺酒石酸盐的新应用——前手性醛的氰硅化反应
The Open Catalysis Journal Pub Date : 2010-10-29 DOI: 10.2174/1876214X01003010087
L. Mei, Z. Hai, Y. Hao, S. Jie, H. Liang
{"title":"The Novel Application of Chiral α-Ethylphenyl Amine Tartaric Acid Salts-Cyanosilylation of Prochiral Aldehydes","authors":"L. Mei, Z. Hai, Y. Hao, S. Jie, H. Liang","doi":"10.2174/1876214X01003010087","DOIUrl":"https://doi.org/10.2174/1876214X01003010087","url":null,"abstract":"The � -ethylphenylamine tartaric acid salts 1a-1d were synthesized from R-(+)/S-(-)-� -ethylphenylamine by reacting with (2S,3S)-(+)/(2R,3R)-(-) dihydrobutanedioic acid. They were used as the catalysts in cyanosilylation of prochiral aldehydes to give the corresponding cyanohydrin trimethylsilyl ethers in moderate conversion at room","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"32 1","pages":"87-91"},"PeriodicalIF":0.0,"publicationDate":"2010-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89180120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Synthesis and Characterization of Nano Structured Pd-Ni and Pd-Ni-CComposites Towards Electrooxidation of Alcohols 纳米结构Pd-Ni和Pd-Ni- c复合材料的合成与表征
The Open Catalysis Journal Pub Date : 2010-10-12 DOI: 10.2174/1876214X01003010070
R. Awasthi, A. Mirzaei, Anindita, R. Singh
{"title":"Synthesis and Characterization of Nano Structured Pd-Ni and Pd-Ni-CComposites Towards Electrooxidation of Alcohols","authors":"R. Awasthi, A. Mirzaei, Anindita, R. Singh","doi":"10.2174/1876214X01003010070","DOIUrl":"https://doi.org/10.2174/1876214X01003010070","url":null,"abstract":"Nanostructured (100-x)% Pd -x % Ni (x = 1, 2, 5, 10, and 20) and (90 – y)%Pd-10%Ni-y%C (y = 0.5, 1, 2, 5, and 10) composite films are obtained on glassy carbon electrodes and characterized by XRD, TEM, cyclic voltammetry and chronoamperometric techniques for use as electrocatalysts towards methanol, ethanol, ethylene glycol and glycerol oxidations in 1 M KOH at 25°C. Results show that addition of Ni from 1 to 20% to the pure Pd electrode increases the electrocatalytic activity for electrooxidation of each alcohol showing maximum with 10% Ni. Further, all the Pd-Ni composite electrodes exhibit better electrocatalytic performance in the case of ethanol electrooxidation. The rate of electrooxidation of different alcohols on the active 90%Pd-10 % Ni electrode at E = -0.20 V in 1 M KOH is observed to follow the order: ethanol > methanol> ethylene glycol > glycerol. Incorporation of C from 0.5 to 10% to the active Pd10% Ni composite improves the electrocatalytic performance of the electrode further, the magnitude of improvement being greatest with 5%C. The apparent electrocatalytic activity of the active 90%Pd-10%Ni electrode at E = -0.20 V is enhanced ~ 1.3 to 2.1 times with introduction of 5%C.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"46 1","pages":"70-78"},"PeriodicalIF":0.0,"publicationDate":"2010-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73774197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Electro-Catalytic Activities of Binary Nano-Composites of Pt and Nano- Carbon/Multiwall Carbon Nanotube for Methanol Electro-Oxidation 铂和纳米碳/多壁碳纳米管二元纳米复合材料对甲醇电氧化的电催化活性
The Open Catalysis Journal Pub Date : 2010-09-16 DOI: 10.2174/1876214X01003010050
R. Singh, R. Awasthi, S. Tiwari
{"title":"Electro-Catalytic Activities of Binary Nano-Composites of Pt and Nano- Carbon/Multiwall Carbon Nanotube for Methanol Electro-Oxidation","authors":"R. Singh, R. Awasthi, S. Tiwari","doi":"10.2174/1876214X01003010050","DOIUrl":"https://doi.org/10.2174/1876214X01003010050","url":null,"abstract":"Binary nano-composites of Pt and nano-carbon (NC) and Pt and multiwalled carbon nanotube (MWCNT) have \u0000been prepared with varied compositions ranging between 20 and 80wt% Pt and investigated them as electrocatalysts for \u0000methanol oxidation. The study shows that with the increase in wt% of NC, the apparent electro-catalytic activity of the \u0000composite catalyst increases initially, reaches maximum at about 40wt% NC and decreases thereafter. However, the \u0000anodic peak current value, estimated as per mg of Pt present in the composite, increases gradually with increasing wt% of \u0000NC in the composite. The electrochemical active surface area (EASA) value for Pt in the composite electrode also \u0000increases with increasing the carbon composition in the composite. Almost similar effect of the MWCNT addition on the electro-catalytic activity is also observed in the case of Pt-MWCNT composite. Results have shown that an incorporation of carbon (NC/MWCNT) improves both the geometrical as well as the electronic properties of Pt.","PeriodicalId":22755,"journal":{"name":"The Open Catalysis Journal","volume":"197 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91001872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
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