全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Pralay Das , Basudeb Basu
来源:[J].Synthetic Communications(IF 1.06), 2004, Vol.34 (12), pp.2177-2184Taylor & Francis
摘要:Abstract(#br)An experimentally simple microwave‐assisted solvent‐free N ‐arylation of primary amines with sodium tetraphenylborate or arylboronic acids, promoted by inexpensive cupric acetate, on the surface of KF–alumina is reported. The reaction is selective for mo...
作者:Mei‐Ying Li , He Liu , Bo‐Hua Zhong
来源:[J].Synthetic Communications(IF 1.06), 2007, Vol.37 (6), pp.1001-1009Taylor & Francis
摘要:Abstract(#br)A series of novel N ‐aryl‐2‐substituted tetrahydrobenzimidazoles has been synthesized via direct N ‐arylation of 2‐substituted tetrahydrobenzimidazoles, which was accomplished by a medium aryl electrophile, 4‐methylsulfonylfluorobenze, in the presence of...
作者:Ali Khalafi‐Nezhad , Abdolkarim Zare , Abolfath Parhami ...
来源:[J].Synthetic Communications(IF 1.06), 2006, Vol.36 (23), pp.3549-3562Taylor & Francis
摘要:Abstract(#br)N‐Arylation of some pyrimidine and purine nucleobases in the presence of SiO2 and Cs2CO3 under solvent‐free as well as in solution conditions is described. In these conditions, N 1‐aryl pyrimidines and N 9‐aryl purines have...
作者:M. Lakshmi Kantam , T. Ramani , L. Chakrapani
来源:[J].Synthetic Communications(IF 1.06), 2008, Vol.38 (4), pp.626-636Taylor & Francis
摘要:Abstract(#br)Sulfonato‐Cu(salen) complex immobilized onto a Merrifield's resin was found to be an efficient catalyst for the N ‐arylation of heterocycles with electron‐withdrawing hloro‐ and fluoroarenes. The reactions were carried out in the presence of an inexpensi...
作者:Bao‐Hua Zhang , Lan‐xiang Shi , Si‐Jie Liu ...
来源:[J].Journal of Heterocyclic Chemistry(IF 1.224), 2015, Vol.52 (4), pp.1234-1239Wiley
摘要:An efficient copper‐catalyzed N‐arylation reactions of imidazole, indole, and triazole with aryl or heteroaryl halides using cyclen derivatives as efficient organic base and ligand at moderate temperature have been investigated. The cross‐couplings proceed smoothly with ...
作者:Kyeong‐Yong Park , Jinyong Lee , Seong Jun Park ...
来源:[J].Advanced Synthesis & Catalysis(IF 5.535), 2015, Vol.357 (18), pp.3917-3926Wiley
摘要:... The Pd‐catalyzed intramolecular N‐arylation of Z ‐enamines, formally prepared by the Horner–Wadsworth–Emmons olefination, proceeded efficiently to furnish the cyclized products. Depending on the cyclization conditions, substituted 1,4‐dihydroquinolines and furthe...
作者:So Han Kim , Min Kim , John G. Verkade ...
来源:[J].European Journal of Organic Chemistry(IF 3.344), 2015, Vol.2015 (9), pp.1954-1960Wiley
摘要:Abstract(#br)The N ‐arylation of various amines with aryl chlorides proceeded in good‐to‐excellent yields in the presence of P[N{( p ‐NMe2)C6H4CH2}CH2CH2]3N ( 1e , a new electron‐rich proazaph...
作者:Jianguang Liu , Yingying Tian , Jialing Shi ...
来源:[J].Angewandte Chemie International Edition(IF 13.734), 2015, Vol.54 (37), pp.10917-10920Wiley
摘要:... An enantioselective synthesis of chiral spirobilactams via a copper‐catalyzed double N‐arylation was developed. Amplification of solution ee by in situ precipitation of the racemate was observed with this method and enantioenriched spirobilactams were obtained with excel...
作者:Bryan Yong‐Hao Tan , Yong‐Chua Teo , Ai‐Hua Seow
来源:[J].European Journal of Organic Chemistry(IF 3.344), 2014, Vol.2014 (7), pp.1541-1546Wiley
摘要:Abstract(#br)A simple and practical protocol for the cross‐coupling of methanesulfonamide and aryl iodides under ligand‐free copper(I)‐oxide‐catalyzed conditions in water is reported. The method allows the preparation of a wide variety of synthetically useful N ‐ar...
作者:Issa Yavari , Manijeh Nematpour
来源:[J].Helvetica Chimica Acta(IF 1.383), 2014, Vol.97 (8), pp.1132-1135Wiley
摘要:Abstract(#br)The synthesis of a novel class of 3‐[bis(dimethylamino)methylidene]‐1,1‐diarylureas via a Cu‐catalyzed multicomponent reaction of phenyl isocyanate (PhNCO), 1,1,3,3‐tetramethylguanidine, and aryl halides is described.

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×