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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共34条记录   A novel protocol for selective construction of morpholin-2-one and morpholin-3-one heterocycles from aminoethanol with divinyl fumarate. [作者：Zhang, Qing-Yi;Xu, Jian-Ming;Chen, Wan-Qin;Wu, Qi;Lin, Xian-Fu;,期刊：SYNLETT, 页码：679-682 , 文章类型： 研究论文，,卷期：2008年-5] A simple and efficient method for selective construction of 2- and 3-morpholinones was developed from N-substituted aminoethanols and divinyl fumarate. The selectivity of this catalyst-free reaction was easily controlle... Microwave-assisted reactions of a-diazosulfoxides to form a-oxosulfines. [作者：O'Sullivan, Orlagh C. M.;Collins, Stuart G.;Maguire, Anita R.;,期刊：SYNLETT, 页码：659-662 , 文章类型： 研究论文，,卷期：2008年-5] Wolff rearrangement of a-diazo sulfoxides was induced by microwave irradn. forming a-oxo sulfines. The outcome of the transformation was similar to the outcome under thermal conditions, with no evidence of specific micr... Indium(III) trifluoromethanesulfonate. An efficient reusable catalyst for the alkynylation-cyclization of 2-aminoaryl ketones and synthesis of 2,4-disubstituted quinolines. [作者：Lekhok, Kushal C.;Prajapati, Dipak;Boruah, Ramesh C.;,期刊：SYNLETT, 页码：655-658 , 文章类型： 研究论文，,卷期：2008年-5] An environmentally friendly and highly efficient procedure for the prepn. of 2,4-disubstituted quinoline derivs. was developed by a simple alkynylation-cyclization reaction of 2-aminoaryl ketones with phenylacetylene in ... The first organocatalytic enantio- and diastereoselective 1,3-dipolar cycloaddition of azomethine ylides with nitroalkenes. [作者：Xue, Meng-Xia;Zhang, Xiao-Mei;Gong, Liu-Zhu;,期刊：SYNLETT, 页码：691-694 , 文章类型： 研究论文，,卷期：2008年-5] The first chiral thiourea-catalyzed stereoselective 1,3-dipolar cycloaddn. of azomethine ylides with nitro alkenes afforded highly substituted pyrrolidines with high diastereoselectivities of up to >99:1 dr and moderate ... Synthetic studies toward the total synthesis of amphidinolide H1. [作者：Deng, Lisheng;Ma, Zhixiong;Zhao, Gang;,期刊：SYNLETT, 页码：728-732 , 文章类型： 研究论文，,卷期：2008年-5] A convergent synthesis of the macrolide core as the immediate precursor to amphidinolide H1 is described, which features a palladium-catalyzed Stille cross-coupling, a Me ketone diastereoselective aldol reaction, a Mitsu... Synthetic studies directed toward kaitocephalin: a highly stereocontrolled route to the right-hand pyrrolidine core. [作者：Takahashi, Keisuke;Haraguchi, Natsumi;Ishihara, Jun;Hatakeyama, Susumi;,期刊：SYNLETT, 页码：671-674 , 文章类型： 研究论文，,卷期：2008年-5] A highly stereocontrolled method for the construction of the right-hand segment of kaitocephalin, an antagonist of AMPA/KA and NMDA glutamate receptors, was developed employing palladium-catalyzed cyclization of an oxira... Platinum-catalyzed tandem cyclization-Nazarov cylization reactions: an easy access to complex carbocyclic molecules from 2-alkenyl-(1'-hydroxyl-4-en-2-ynyl)benzenes. [作者：Abu Sohel, Shariar Md.;Lin, Sheng-Hsun;Liu, Rai-Shung;,期刊：SYNLETT, 页码：745-750 , 文章类型： 研究论文，,卷期：2008年-5] In the presence of PtCl2/CO catalyst, 2-alkenyl-(1'-hydroxyl-4-en-2-ynyl)benzenes undergo a tandem electrophilic 6-exo-dig cyclization-Nazarov cyclization sequence to give 1H-cyclopenta[a]naphthalenes efficiently and reg... Facile aromatic Claisen rearrangement catalysed by tin(IV) chloride. [作者：Sarkar, Debayan;Venkateswaran, Ramanathapuram V.;,期刊：SYNLETT, 页码：653-654 , 文章类型： 研究论文，,卷期：2008年-5] Allyl aryl ethers undergo facile Claisen rearrangement under mild conditions catalyzed by tin(IV) chloride. Aerobic photooxidation of benzylamide in the presence of catalytic iodine. [作者：Nakayama, Hiroki;Itoh, Akichika;,期刊：SYNLETT, 页码：675-678 , 文章类型： 研究论文，,卷期：2008年-5] Benzylamides were oxidized to the corresponding imides in the presence of mol. oxygen and catalytic iodine under photoirradn. [Ir(cod)Cl]2/FDPPE-catalyzed chemo- and regioselective cyclotrimerization of two different terminal alkynes to give 1,3,5-trisubstituted benzenes. [作者：Onodera, Gen;Matsuzawa, Masayoshi;Aizawa, Takahiro;Kitahara, Takeshi;Shimizu, Yoshihisa;Kezuka, Satoko;Takeuchi, Ryo;,期刊：SYNLETT, 页码：755-758 , 文章类型： 研究论文，,卷期：2008年-5] [Ir(cod)Cl]2 in combination with 1,2-bis(dipentafluorophenylphosphino)ethane (FDPPE) catalyzes chemo- and regioselective cyclotrimerization of two different alkynes. Thus, the reaction of propiolate with 1-hexyne gave 3,... Enantioselective [1,2]-Stevens rearrangement using sugar-derived alkoxides as chiral promoters. [作者：Tomooka, Katsuhiko;Sakamaki, Junichiro;Harada, Manabu;Wada, Ryoji;,期刊：SYNLETT, 页码：683-686 , 文章类型： 研究论文，,卷期：2008年-5] The first example of enantioselective base-induced [1,2]-Stevens rearrangement was achieved by using a newly developed D-glucose-derived lithium alkoxide as a chiral promoter. This rearrangement provides an a-amino keto... Dimethyldioxirane (DMD). [Erratum to document cited in CA148:517012]. [作者：Srivastava, Vishnu Prabhakar;,期刊：SYNLETT, 页码：786-786 , 文章类型： 综述，,卷期：2008年-5] A review. On page 626, in the upper left corner, this spotlight was given No. 229. The correct labeling is "Spotlight 231". Dimethyl carbonate (DMC): a versatile and environmentally benign building block. [Erratum to document cited in CA148:517011]. [作者：Chankeshwara, Sunay V.;,期刊：SYNLETT, 页码：786-786 , 文章类型： 综述，,卷期：2008年-5] A review. In the upper left corner of page 624, this spotlight was given No. 228. The correct labeling is "Spotlight 230". Synthesis of aminocyclodextrin carboxylic acids. [作者：Hanessian, Stephen;Hocquelet, Celine;Jankowski, Christopher K.;,期刊：SYNLETT, 页码：715-719 , 文章类型： 研究论文，,卷期：2008年-5] Synthesis of aminocyclodextrin carboxylic acids (6-amino-6'-carboxylic acid) via selective amination and oxidn. of 6A,6D-dihydroxy a- and b-cyclodextrins, resp., is reported. Expedient entry into 1,4-dihydroquinoxalines and quinoxalines via a novel variant of isocyanide-based MCR. [作者：Krasavin, Mikhail;Parchinsky, Vladislav;,期刊：SYNLETT, 页码：645-648 , 文章类型： 研究论文，,卷期：2008年-5] A novel multicomponent reaction of o-phenylenediamines with aldehydes and isonitriles yields 1,4-dihydroquinoxalines. These intermediates are unstable under reaction conditions. They undergo oxidn. with DDQ to furnish ... Ytterbium(III) triflate catalyzed one-pot synthesis of 1,3-thiazolidin-2-imines from epichlorohydrin and thioureas. [作者：Su, Weike;Liu, Chuangwei;Shan, Weiguang;,期刊：SYNLETT, 页码：725-727 , 文章类型： 研究论文，,卷期：2008年-5] 2-Arylimino-3-aryl-1,3-thiazolidines were successfully obtained from epichlorohydrin and thioureas in DMF catalyzed by Yb(OTf)3. Inversion of the configuration occurred at the chiral center of the epoxide.