维普中文期刊产品整合服务
52篇 您的检索式:作者名="Shirini"
    题名 作者 年代 出处 被引量
1橡胶和SBS对排水沥青混合料性能影响的试验研究显示文摘排水沥青路面(PA)具有良好的排水和降噪性能,但相对于密级配沥青混合料,其抗车辙能力、抗疲劳与抗水损害等性能较差。为评价橡胶颗粒(CR)对排水沥青路面性能的影响,以普通排水沥青混合料与5%SBS改性排水沥青混合料为对照组,研究了CR掺量为10%、15%、20%橡胶改性排水沥青混合料的抗车辙、抗析漏、抗滑与水稳定性等性能。结果表明:CR和SBS既降低了排水沥青路面的渗透性,也显著提高了抗车辙能力。同时CR还可以提高混合料的初期回弹模量、抗滑性和抗水损害能力,但CR掺量过大会对路面性能产生不利影响。刘梦梅 韩森 任万艳 Bahram Shirini Reza Imaninasab 2018中外公路2018,38,3:13
2无溶剂条件下N-磺酸琥珀酰亚胺催化乙酰化反应(英文)显示文摘A small amount of succinimide-N-sulfonic acid efficiently catalyzed the acetylation of a variety alcohols, phenols, thiols, amines and aldehydes with acetic anhydride at room temperature under solvent free conditions. This catalyst has the advantages of excellent yields and short reaction times and the reaction can be carried out on a large scale, which makes it potentially useful for industrial applications.Farhad SHIRINI Nader Ghaffari KHALIGH 2013催化学报2013,34,4:6
3温和条件下丁二酰亚胺-N-磺酸催化合成双吲哚甲烷和香豆素衍生物(英文)显示文摘A mild and simple procedure is described for the synthesis of bis(indolyl)methane and coumarin derivatives using succinimide-N-sulfonic acid as an efficient,cheap,and reusable catalyst under mild conditions.Farhad Shirini Nader Ghaffari Khaligh 2013催化学报2013,34,10:5
4Efficient synthesis of bis(indolyl) methanes catalyzed by(PhCH_2PPh_3)^+Br_3^- under solvent-free conditions显示文摘Benzyltriphenylphosphonium tribromide (BTPTB ) 为二度(indolyl ) 的准备作为有效催化剂被使用了经由有当溶剂不在时的醛的吲哚的 electrophilic 替换的甲烷(BIM ) 。Farhad Shirini Mohaddeseh Safarpoor Langroodi Masoumeh Abedini 2010Chinese Chemical Letters2010,21,11:5
5One-pot synthesis of various xanthene derivatives using ionic liquid1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable catalyst under solvent-free conditions显示文摘In this study,1,3-disulfonic acid imidazolium hydrogen sulfate(DS1MHS) is used as an efficient and reusable ionic liquid for the green,mild,and efficient synthesis of xanthenes under solvent-free conditions.Simple and easy work-up,low cost,green process,short reaction times and excellent yields of the products are the advantages of this procedure.Further,the catalyst can be recycled and reused at least for four times without a noticeably decrease in its catalytic activity.Farhad Shirini Asieh Yahyazadeh Kamal Mohammadi 2014Chinese Chemical Letters2014,25,2:4
6Melamine trisulfonic acid:A new,efficient and recyclable catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones in the absence of solvent显示文摘三聚氰胺 trisulfonic 酸(MTSA ) 能是被使用一有效并且为 3,4-dihydropyrimidin-2 (1H ) 的合成的提升的 recyclable 催化剂当溶剂不在时的 -ones/thiones (DHPM ) 。所有反应在 80 業慤潺敬 ' 嬑垴窊 e 湹桴獥獩漠 ? 楤污祫 ? 被执行 ???Farhad Shirini Mohammad Ali Zolfigol Jalal Albadi 2011Chinese Chemical Letters2011,22,3:4
7Regioselective tetrahydropyranylation of alcohols catalyzed by Fe(HSO_4)_3显示文摘Alcohols are selectively and efficiently protected as their tetrahydropranyl ethers in the presence of a catalytic amount of Fe(HSO4)3 in good to high yields. All reactions are performed under mild and completely heterogeneous reaction conditions.Farhad Shirini Mohammad Ali Zolfigol Abdol-Reza Abri 2007Chinese Chemical Letters2007,18,7:4
8Nanocrystalline TiO_2 as an efficient and reusable catalyst for the chemoselective trimethylsilylation of primary and secondary alcohols and phenols显示文摘Nanocrystalline TiO2 是被使用一有效并且为有 hexamethyldisilazane (HMDS ) 的主要、不太妨碍的第二等的白酒和酚的 chemoselective trimethylsilylation 的 recyclable 催化剂。所有反应在温和、完全异构的条件下面被执行在对优秀收益好。Farhad Shirini Meysam Alipour Khoshdel Masoumeh Abedini Seyyed Vahid Atghia 2011Chinese Chemical Letters2011,22,10:3
9A green multicomponent synthesis of bioactive pyrimido[4,5-b]quinoline derivatives as antibacterial agents in water catalyzed by RuCl_3·xH_2O显示文摘An efficient,convenient and environmentally benign one-pot multicomponent reaction for the preparation of pyrimido[4,5-b]quinoline derivatives as biologically,pharmacologically and antibacterially active products has been developed using RuCl_3·xH_2O as a reusable homogenous catalyst.Use of water as a green solvent,purification of products by non-chromatographic methods,reusability of transition metal homogenous catalyst,saving energy by employing multicomponent reactions,short reaction times and high yields,are some of the advantages of this process.Khalil Tabatabaeian Abdollah Fallah Shojaei Farhad Shirini Seyyedeh Zoha Hejazi Mehdi Rassa 2014Chinese Chemical Letters2014,25,2:3
10An expedient one-pot synthesis of highly substituted imidazoles using supported ionic liquid-like phase(SILLP) as a green and effcient catalyst and evaluation of their anti-microbial activity显示文摘An effcient method for the synthesis of imidazole derivatives by a three-component condensation of benzil or 9,10-phenanthrenequinone,aldehydes and ammonium acetate using supported ionic liquidlike phase(SILLP)catalyst under ultrasonic irradiation or classical heating conditions is reported.The present methodology offers several advantages,such as excellent yields,simple procedures,short reaction times,simple work-up and mild conditions.The catalyst is easily separated from the products by fltration and also exhibits remarkable reusable activity.These highly substituted imidazoles were also evaluated for their anti-microbial activity.Maryam Saffari Jourshari Manouchehr Mamaghani Farhad Shirini Khalil Tabatabaeian Mehdi Rassa Hadiss Langari 2013Chinese Chemical Letters2013,24,11:2
11One-pot synthesis of novel pyrido[2,3-d]pyrimidines using HAp-encapsulated-γ-Fe_2O_3 supported sulfonic acid nanocatalyst under solvent-free conditions显示文摘Novel pyrido[2,3-d]pyrimidine derivatives were synthesized through a one-pot three-component approach using HAp-encapsulated-γ-Fe_2O_3[γ-Fe_2O_3@HAp-SO_3H]catalyzed condensation of 6-arnino-2-(methylthio or ethylthio)pyrimidin-4(3H)-one,Meldrum's acid and aryl aldehydes at 60 ℃ and under solvent-free conditions.In this protocol the use of nanocatalyst provided a green,useful and rapid method to generate the products in short reaction times and excellent yields(88%-94%).Moona Mohsenimehr Manouchehr Mamaghani Farhad Shirini Mehdi Sheykhan Fatemeh Azimian Moghaddam 2014Chinese Chemical Letters2014,25,10:2
12V(HSO_4)_3 catalyzed chemoselectivity acetylation of alcohols and phenols in solution and under solvent-free conditions显示文摘A variety of alcohols and phenols are efficiently acetylated with acetic anhydride in the presence of a catalytic amount of V(HSO_4)_3 in solution and under solvent free conditions.Mild reaction conditions,high yields of the products,easy procedure and selective acetylation of alcohols and phenols in the presence of amines and thiols are the main advantages of this procedure.Farhad Shirini Ali Reza Sakhaei Masoumeh Abedini 2009Chinese Chemical Letters2009,20,4:2
13Fe(NO_3)_3·9H_2O/Fe(HSO_4)_3:An efficient reagent system for the oxidation of alcohols,thiols and sulfides in the absence of solvent显示文摘缺酸料液(NO3 ) 3 · 9 H2O/Fe (HSO4 ) 3 为白酒的氧化被用作一个有效试剂系统到他们的相应羰基化物。所有反应当溶剂不在时被执行在对高产率好。在一样的反应条件下面, thiols 和硫化物也分别地被变换成他们的相应二硫化物和 sulfoxides。Farhad Shirini Mohammad A.Zolfigol Abdol-Reza Abri 2008Chinese Chemical Letters2008,19,1:2
14Silica sulfuric acid:A versatile reagent for oxathioacetalyzation of carbonyl compounds and deprotection of 1,3-oxathiolanes显示文摘有获得的 1,3-oxathiolanes 的 2-mercaptoethanol 和 deprotection 的羰基混合物的 Oxathioacetalyzation 容易面对硅石被执行硫磺的酸(SSA ) 。所有反应在温和、完全异构的反应条件下面被执行在对高收益好。Farhad Shirini Parisa Sadeghzadeh Masoumeh Abedini 2009Chinese Chemical Letters2009,20,12:2
15Silica triflate as an efficient reagent for the solvent-free synthesis of coumarins显示文摘作为新基于硅石的试剂,硅石 triflate 能在没有溶剂的反应条件下面经由 Pechmann 反应被用于 4 代用品香豆素的有效合成。所有反应在 80 ° C 被执行在对高产率好。Farhad Shirini Katayoun Marjani Hossein Taherpour Nahzomi Mohammad Ali Zolfigol 2007Chinese Chemical Letters2007,18,8:1
16Succinimide- N -sulfonic acid: An efficient catalyst for the synthesis of xanthene derivatives under solvent-free conditions显示文摘Farhad Shirini Nader Ghaffari Khaligh 2012Dyes and Pigments2012,,3:1
17Silica sulfuric acid and silica chloride as efficient reagents for organic reactions显示文摘Peyman Salehi Mohammad Ali Zolfigol Farhad Shirini 2006Current Organic Chemistry2006,10,17:1
18Zirconium borohydride piperazine complex, an efficient, air and thermally stable reducing agent显示文摘Tajbakhsh M Lakouraj M M Shirini F 2004TetrahedronLetters2004,45,16:1
19Nanocrystalline TiO2-HClO4 as a new, Efficient and Recyclable Catalyst for theChemoselective Trimethylsilylation of Alcohols, Phenols and Deprotection of Silyl Ethers 显示文摘Shirini F Atghia S V Jirdehi M G 2012Catal Commun2012,18,:1
20查看详情显示文摘Shirini F Zolfigol M.A Mllarazi E 0,,:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费