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| 1 | 二氧化钛纳米粒子催化合成Hantzsch酯和多氢喹啉衍生物(英文)显示文摘1,4-Dihydropyridine and polyhydroquinoline derivatives have been prepared efficiently in a one-pot synthesis via Hantzsch condensation using nanosized titanium dioxide as a heterogeneous catalyst.The present methodology offers several advantages such as excellent yields,short reaction times (30-120 min),environmentally benign,and mild reaction conditions.The catalyst can be readily separated from the reaction products and recovered in excellent purity for direct reuse. | Mahmood TAJBAKHSH Ehsan ALAEE Heshmatollah ALINEZHAD Mohammad KHANIAN Fatemeh JAHANI Samad KHAKSAR Parizad REZAEE Mahgol TAJBAKHSH | 2012 | 催化学报2012,33,9: | 6 |
| 2 | Supramolecular synthesis of 3,4-dihydropyrimidine-2(1H)-one/thiones under neat conditions显示文摘有效溶剂为各种各样的 3,4-dihydropyrimidin-2 (1H ) 的合成的免费方法在把 sulfonated -cyclodextrine 用作 recyclable 催化剂的优秀收益的 -one/thiones 被描述。Sulfonated -cyclodextrine 被发现有效,异构的催化剂和显示出的率改进,高收益和短反应在这转变预定的 recyclable。 | Sekineh Asghari Mahmood Tajbakhsh Behnam Jafarzadeh Kenari Samad Khaksar | 2011 | Chinese Chemical Letters2011,22,2: | 3 |
| 3 | A highly efficient procedure for the synthesis of quinoxaline derivatives using polyvinylpolypyrrolidone supported triflic acid catalyst(PVPP.OTf)显示文摘A polyvinylpolypyrrolidone supported triflic acid was shown to be useful as a recyclable heterogeneous catalyst for the rapid and efficient synthesis of quinoxaline derivatives in good-to-excellent yields.The catalyst is easily prepared,air-stable,reusable,and easily removed from the reaction mixtures. | Samad Khaksar Mahmoud Tajbakhsh Milad Gholami Fariba Rostamnezhad | 2014 | Chinese Chemical Letters2014,25,9: | 2 |
| 4 | Oxalic acid as a simple and efficient organocatalyst for three-component synthesis ofα-amino nitriles显示文摘一个简单、有效、一般的方法为氨基的 nitriles 的合成被开发了。象 Br 酸的草酸 ? nsted 酸把 TMSCN 的增加提升到各种各样的 imines (在 situ 产生了) 。 | Seyed Mohammad Vahdat Samad Khaksar Maryam Khavarpour | 2011 | Chinese Chemical Letters2011,22,5: | 2 |
| 5 | 一个简单、环境友好的硅胶固载硫酸催化Biginelli反应体系(英文)显示文摘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 catalyzed by silica-bonded S-sulfonic acid.Compared to the classical Biginelli reaction conditions,this new protocol has the advantages of consistently excellent yields and short reaction times.After the reaction,the catalyst could be recovered easily and reused with little change in its activity. | Mahmood TAJBAKHSH Yousef RANJBAR Abdolhosein MASUODI Samad KHAKSAR | 2012 | 催化学报2012,33,9: | 1 |
| 6 | One-step,synthesis of Hantzsch esters and polyhydroquinoline derivatives using new organocatalyst显示文摘Herein we report an efficient organocatalyst for the multicomponent Hantzsch reaction under mild condition.The product easily isolated by simple filtration and catalyst can be recovered. | Seyed Meysam Baghbanian Samad Khaksar Seyed Mohammad Vahdat Maryam Farhang Mahmood Tajbakhsh | 2010 | Chinese Chemical Letters2010,21,5: | 1 |
| 7 | 新型五氟苯铵三氟有机催化剂高效合成14-芳基(烷基)-14H-二苯并[a,j]呫吨类化合物和1,8-二氧代氧杂蒽衍生物(英文)显示文摘A simple and facile synthesis of 14-aryl and alkyl-14H-dibenzo[a,j]xanthenes and 1,8-dioxooctahydroxanthene derivatives has been successfully developed by treatment of β-naphthol or dimedone with aldehydes under mild conditions in the presence of a pentafluorophenyl ammonium triflate(PFPAT) organocatalyst.These catalytic condensation reactions represent green chemical processes and the PFPAT organocatalyst is air-stable,cost-effective,easy to handle,and easily removed from the reaction mixtures. | Samad KHAKSAR Nosratollah BEHZADI | 2012 | 催化学报2012,33,6: | 0 |
| 8 | MgCl2/Et3N Base System as a New Catalyst for the Synthesis of a-Hydroxyphosphonate显示文摘 | Tajbakhsh, Mahmood Khaksar, Samad Tafazoli, Zahra Bekhradnia, Ahmadreza | 2012 | Chinese Journal of Chemistry2012,30,4: | 0 |