- Gas-Phase Reactivity of Aromatic s,s-Biradicals toward Dinucleoside Phosphates.
[作者:Yang, Linan;Nash, John J.;Yurkovich, Michael J.;Jin, Zhicheng;Vinueza, Nelson R.;Kenttaemaa, Hilkka I.;,期刊:Organic Letters, 页码:1889-1892 , 文章类型: 研究论文,,卷期:2008年10-10]
- In order to improve the understanding of the interactions of arom. s,s-biradicals with DNA, the reactivity of three isomeric s,s-biradicals toward four dinucleoside phosphates was studied in a mass spectrometer. The din...
- Introduction of Functional Groups into Peptides via N-Alkylation.
[作者:Demmer, O.;Dijkgraaf, I.;Schottelius, M.;Wester, H.-J.;Kessler, H.;,期刊:Organic Letters, 页码:2015-2018 , 文章类型: 研究论文,,卷期:2008年10-10]
- An optimized protocol for the mild and selective Fukuyama-Mitsunobu reaction was used for mono- and di-N-alkylation on solid support. Thereby, nonfunctionalized aliph. and arom. residues are quickly introduced into trans...
- Molecular Fibers and Wires in Solid-State and Solution Self-Assemblies of Cyclodextrin [2]Rotaxanes.
[作者:Maniam, Subashani;Cieslinski, Marta M.;Lincoln, Stephen F.;Onagi, Hideki;Steel, Peter J.;Willis, Anthony C.;Easton, Christopher J.;,期刊:Organic Letters, 页码:1885-1888 , 文章类型: 研究论文,,卷期:2008年10-10]
- Cyclodextrin [2]rotaxanes have been prepd. by coupling dimethylanilines with dicarboxylic acids using DMT-MM, in aq. solns. of a-cyclodextrin. The example illustrated shows unusual fluorescence emission and other spectr...
- Total Synthesis of (?-Murrayazoline.
[作者:Ueno, Akiko;Kitawaki, Takafumi;Chida, Noritaka;,期刊:Organic Letters, 页码:1999-2002 , 文章类型: 研究论文,,卷期:2008年10-10]
- The total synthesis of (?-murrayazoline (I) is described. The characteristic hexa-heterocyclic structure of I was constructed by a combination of the intramol. Friedel-Crafts-type Michael addn. and Pd-catalyzed C-O coup...
- Cipadonoid A, a Novel Limonoid with an Unprecedented Skeleton, from Cipadessa cinerascens.
[作者:Fang, Xin;Di, Ying-Tong;He, Hong-Ping;Liu, Hai-Yang;Zhang, Zhen;Ren, Yan-Li;Gao, Zhu-Lin;Gao, Suo;Hao, Xiao-Jiang;,期刊:Organic Letters, 页码:1905-1908 , 文章类型: 研究论文,,卷期:2008年10-10]
- Cipadonoid A (I), a novel limonoid with an unprecedented skeleton, was isolated from the leaves of Cipadessa cinerascens. Its structure and relative configuration were detd. by spectroscopic anal. and computer modeling....
- Solid-Phase Synthesis of Azidomethylene Inhibitors Targeting Cysteine Proteases.
[作者:Yang, Peng-Yu;Wu, Hao;Lee, Mei Yin;Xu, Ashley;Srinivasan, Rajavel;Yao, Shao Q.;,期刊:Organic Letters, 页码:1881-1884 , 文章类型: 研究论文,,卷期:2008年10-10]
- An efficient strategy for the solid-phase synthesis of azidomethylene inhibitors targeting cysteine proteases is described. The method is highlighted by its compatibility with readily available building blocks, as well ...
- Testing the Validity of the Conventional Resonance Model for Protonated Carbonyl, Imine and Thiocarbonyl Compounds. An Ab Initio Valence Bond Study.
[作者:Braida, Benoit;Bundhoo, Dilshaad;Engels, Bernd;Hiberty, Philippe C.;,期刊:Organic Letters, 页码:1951-1954 , 文章类型: 研究论文,,卷期:2008年10-10]
- The conventional resonance model describes protonated carbonyls, imines, and thiocarbonyls by a superposition of two structures, one p polar-covalent and the other of carbenium type. The validity of this model is clearl...
- Silicon-Induced Ene-Type Reaction in the Thermal Conversion of Enolates to b-Silyl Enones with Molecular Dioxygen.
[作者:Hwu, Jih Ru;Chen, Chien Hsien;Hsu, Chuan-I.;Das, Asish R.;Li, Yen Cheng;Lin, Lung Ching;,期刊:Organic Letters, 页码:1913-1916 , 文章类型: 研究论文,,卷期:2008年10-10]
- Reaction of alkyl, acetoxy, and silyl enol ethers of 3-(organosilyl)cyclohexanone with mol. dioxygen in toluene at 110? produced the corresponding conjugated enones in yields up to 88% yield. The reaction of the same ty...
- Enantioselective Synthesis of Cyclic Sulfamidates via Pd-Catalyzed Hydrogenation.
[作者:Wang, You-Qing;Yu, Chang-Bin;Wang, Da-Wei;Wang, Xiao-Bing;Zhou, Yong-Gui;,期刊:Organic Letters, 页码:2071-2074 , 文章类型: 研究论文,,卷期:2008年10-10]
- Using Pd(CF3CO2)2/(S,S)-f-binaphane as the catalyst, an efficient enantioselective synthesis of cyclic sulfamidates, e.g., I, was developed via asym. hydrogenation of the corresponding cyclic imines in 2,2,2-trifluoroeth...
- Cu2+-Induced Intermolecular Static Excimer Formation of Pyrenealkylamine.
[作者:Kim, Hyun Jung;Hong, Jooyeon;Hong, Areum;Ham, Sihyun;Lee, Joung Hae;Kim, Jong Seung;,期刊:Organic Letters, 页码:1963-1966 , 文章类型: 研究论文,,卷期:2008年10-10]
- Synthesis of monopyrenylalkylamine deriv. 1 and its fluorescence behavior for Cu2+ in H2O/MeCN (1:1, vol./vol.) were studied. Upon Cu2+ binding, 1, bearing a sulfonamide group, exhibited a marked excimer emission at 455...
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