- Totally Selective Synthesis of Enantiopure (3S,5S)- and (3R,5R)-4-Amino-3,5-dihydroxypiperidines from Aminodiepoxides Derived from Serine.
[作者:Concellon, Jose M.;Rivero, Ignacio A.;Rodriguez-Solla, Humberto;Concellon, Carmen;Espana, Estibaly;Garcia-Granda, Santiago;Diaz, M. R.;,期刊:Journal of Organic Chemistry, 页码:6048-6051 , 文章类型: 研究论文,,卷期:2008年73-15]
- The transformation of enantiopure (2R,4R)- and (2S,4S)-N,N-dibenzyl-1,2:4,5-diepoxypentan-3-amine into the corresponding enantiopure (3S,5S)- and (3R,5R)-3,5-dihydroxy-3-aminopiperidines is described. The opening of the...
- Reactive Extraction of Enantiomers of 1,2-Amino Alcohols via Stereoselective Thermodynamic and Kinetic Processes.
[作者:Tang, Lijun;Choi, Sujung;Nandhakumar, Raju;Park, Hyunjung;Chung, Hyein;Chin, Jik;Kim, Kwan Mook;,期刊:Journal of Organic Chemistry, 页码:5996-5999 , 文章类型: 研究论文,,卷期:2008年73-15]
- (R)-2-Amino-2-phenylethanol was obtained with an enantiomeric excess of >95% from 2 equiv. of racemic alc. by reactive extn. processes using a chiral receptor (S)-I as an enantioselective extractant. One resoln. cycle i...
- Quantum Amplified Isomerization in Polymers Based on Triplet Chain Reactions.
[作者:Ferrar, Lorraine;Mis, Mark;Dinnocenzo, Joseph P.;Farid, Samir;Merkel, Paul B.;Robello, Douglas R.;,期刊:Journal of Organic Chemistry, 页码:5683-5692 , 文章类型: 研究论文,,卷期:2008年73-15]
- Photoinitiated triplet quantum amplified isomerizations (QAI) of substituted Dewar benzene derivs. in polymeric media are reported. The quantum efficiencies and the ultimate extents of reactant-to-product conversions inc...
- Experimental and Computational Studies of Selective Recognition of Hg2+ by Amide Linked Lower Rim 1,3-Dibenzimidazole Derivative of Calix[4]arene: Species Characterization in Solution and that in the Isolated Complex, Including the Delineation of the Nano
[作者:Joseph, Roymon;Ramanujam, Balaji;Acharya, Amitabha;Khutia, Anupam;Rao, Chebrolu P.;,期刊:Journal of Organic Chemistry, 页码:5745-5758 , 文章类型: 研究论文,,卷期:2008年73-15]
- 69, 73, 75, 77 Amide linked lower rim 1,3-dibenzimidazole deriv. of calix[4]arene, L has been shown to be sensitive and selective to Hg2+ in aq. acetonitrile soln. based on fluorescence spectroscopy, and the stoichiometr...
- New Opportunities with the Duff Reaction.
[作者:Masurier, Nicolas;Moreau, Emmanuel;Lartigue, Claire;Gaumet, Vincent;Chezal, Jean-Michel;Heitz, Annie;Teulade, Jean-Claude;Chavignon, Olivier;,期刊:Journal of Organic Chemistry, 页码:5989-5992 , 文章类型: 研究论文,,卷期:2008年73-15]
- The Duff reaction (HMTA, AcOH or TFA) was studied on substituted [6 + 5] heterocyclic compds, e.g. I (R = H). This reaction provides a useful route to aldehydes, e.g. I (R = CHO), for compds. bearing sensitive amide fun...
- Synthesis of Quinolines from 3-Formylchromone.
[作者:Plaskon, Andrey S.;Ryabukhin, Sergey V.;Volochnyuk, Dmitriy M.;Gavrilenko, Konstantin S.;Shivanyuk, Alexander N.;Tolmachev, Andrey A.;,期刊:Journal of Organic Chemistry, 页码:6010-6013 , 文章类型: 研究论文,,卷期:2008年73-15]
- A facile and versatile procedure for the synthesis of 3-(2-hydroxybenzoyl)quinolines and 7H-chromeno[3,2-c]quinolin-7-ones, e.g., I, was elaborated on the basis of TMSCl-mediated recyclization of 3-formylchromone with va...
- Stereoselective Synthesis of 3-Oxygenated-cis-dialkyl-2,5-substituted Tetrahydrofurans from Cyclohexadienediols.
[作者:Brovetto, Margarita;Seoane, Gustavo;,期刊:Journal of Organic Chemistry, 页码:5776-5785 , 文章类型: 研究论文,,卷期:2008年73-15]
- (Heterocyclic Compounds (One Hetero Atom)) Section The 3-oxygenated-cis-dialkyl-2,5-substituted THF system, present in several natural products, was prepd. with good selectivity by acidic cyclization of 5-alkene-1,2,4-tr...
- Photochemical Cycloaddition of Mono-, 1,1-, and 1,2-Disubstituted Olefins to a Chiral 2(5H)-Furanone. Diastereoselective Synthesis of (+)-Lineatin.
[作者:Racamonde, Marta;Alibes, Ramon;Figueredo, Marta;Font, Josep;de March, Pedro;,期刊:Journal of Organic Chemistry, 页码:5944-5952 , 文章类型: 研究论文,,卷期:2008年73-15]
- The photochem. [2+2] cycloaddn. of (S)-4-methyl-5-O-pivaloyloxymethyl-2(5H)-furanone (I) to vinyl acetate, vinyl pivalate, tert-Bu vinyl ether, 1,1-diethoxyethylene, and (Z)- and (E)-1,2-dichloroethylene has been studied...
- Rearrangement of N,N-Di-tert-butoxycarbonylpyridin-4-amines and Formation of Polyfunctional Pyridines.
[作者:Liu, Yahua;Ding, Qiang;Wu, Xu;,期刊:Journal of Organic Chemistry, 页码:6025-6028 , 文章类型: 研究论文,,卷期:2008年73-15]
- N,N-Di-tert-butoxycarbonylpyridin-4-amines I (R1 = R2 = Cl; R1 = Cl, Br, tert-Bu, R2 = H) were found to be rearranged to tert-Bu 4-(tert-butoxycarbonylamino)nicotinates II by treatment with LDA in THF.
- Zinc-Catalyzed Cycloisomerizations. Synthesis of Substituted Furans and Furopyrimidine Nucleosides.
[作者:Sniady, Adam;Durham, Audrey;Morreale, Marco S.;Marcinek, Andrzej;Szafert, Slawomir;Lis, Tadeusz;Brzezinska, Krystyna R.;Iwasaki, Takanori;Ohshima, Takashi;Mashima, Kazushi;Dembinski, Roman;,期刊:Journal of Organic Chemistry, 页码:5881-5889 , 文章类型: 研究论文,,卷期:2008年73-15]
- 5-Endo-dig cycloisomerization of 1,4- and 1,2,4- mostly aryl-substituted but-3-yn-1-ones in the presence of a catalytic amt. of zinc chloride etherate (10 mol %) in dichloromethane at room temp. gave 2,5-di- and 2,3,5-tr...
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