- An Efficient Intramolecular 1,3-Dipolar Cycloaddition Involving 2-(1,2-Dichlorovinyloxy)aryldiazomethanes: A One-Pot Synthesis of Benzofuropyrazoles from Salicylaldehydes.
[作者:Sales, Zachary S.;Mani, Neelakandha S.;,期刊:Journal of Organic Chemistry, 页码:891-894 , 文章类型: 研究论文,,卷期:2009年74-2]
- A novel intramol. 1,3-dipolar cycloaddn. strategy for a rapid entry into benzofuropyrazoles is described. In a three-step sequence, (E)-2-(1,2-dichlorovinyloxy)aryldiazomethanes were generated in situ from the correspon...
- An efficient Ullmann-type C-O bond formation catalyzed by an air-stable copper(I)-bipyridyl complex.
[作者:Niu, Jiajia;Zhou, Hua;Li, Zhigang;Xu, Jingwei;Hu, Shaojing;,期刊:Journal of Organic Chemistry, 页码:950-950 , 文章类型: 研究论文,,卷期:2009年74-2]
- On page 7814, Ref. 5g is incorrect. Ref. 5g should read: "(g) Cristau, H.J.; Cellier, P.P.; Hamada, S.; Spindler, J.F.; Taillerfer, M. Org. Lett. 2004, 6, 913-916.". On page 7814, Refs. 5n and 5o were omitted; the corr...
- Synthesis and Biological Evaluation of a Chitobiose-Based Peptide N-Glycanase Inhibitor Library.
[作者:Witte, Martin D.;Horst, Danielle;Wiertz, Emmanuel J. H. J.;van der Marel, Gijsbert A.;Overkleeft, Herman S.;,期刊:Journal of Organic Chemistry, 页码:605-616 , 文章类型: 研究论文,,卷期:2009年74-2]
- Peptide N-glycanase (PNGase), the enzyme responsible for the deglycosylation of N-linked glycoproteins, has an active site related to that of cysteine proteases. Chitobiose was equipped with electrophilic traps often us...
- One-Step Synthesis of Pyrido[1,2-a]benzimidazole Derivatives by a Novel Multicomponent Reaction of Chloroacetonitrile, Malononitrile, Aromatic Aldehyde, and Pyridine.
[作者:Yan, Chao Guo;Wang, Qi Fang;Song, Xiao Kai;Sun, Jing;,期刊:Journal of Organic Chemistry, 页码:710-718 , 文章类型: 研究论文,,卷期:2009年74-2]
- Polysubstituted pyrido[1,2-a]benzimidazole derivs., e.g. I, are efficiently produced in moderate yields in a novel one-pot, four-component reaction from pyridine or 3-picoline, chloroacetonitrile, malononitrile, and arom...
- Allylic Oxidations Catalyzed by Dirhodium Caprolactamate via Aqueous tert-Butyl Hydroperoxide: The Role of the tert-Butylperoxy Radical.
[作者:McLaughlin, Emily C.;Choi, Hojae;Wang, Kan;Chiou, Grace;Doyle, Michael P.;,期刊:Journal of Organic Chemistry, 页码:730-738 , 文章类型: 研究论文,,卷期:2009年74-2]
- Dirhodium(II) caprolactamate exhibits optimal efficiency for the prodn. of the tert-butylperoxy radical, which is a selective reagent for hydrogen atom abstraction. These oxidn. reactions occur with aq. tert-Bu hydroper...
- One-Pot Conversion of Thebaine to Hydrocodone and Synthesis of Neopinone Ketal.
[作者:Carroll, Robert J.;Leisch, Hannes;Rochon, Lena;Hudlicky, Tomas;Cox, D. Phillip;,期刊:Journal of Organic Chemistry, 页码:747-752 , 文章类型: 研究论文,,卷期:2009年74-2]
- The ethylene glycol ketal I (R6aR6b = OCH2CH2O, R7 = H, R8R14 = bond) of neopinone was prepd. in a one-pot procedure by the reaction of thebaine (R6a = OMe, R6bR7 = bond, R8R14 = bond) with ethylene glycol in the presenc...
- Concise Syntheses of (+)-Macrosphelides A and B: Studies on the Macro-Ring Closure Strategy.
[作者:Paek, Seung-Mann;Yun, Hwayoung;Kim, Nam-Jung;Jung, Jong-Wha;Chang, Dong-Jo;Lee, Sujin;Yoo, Jakyung;Park, Hyun-Ju;Suh, Young-Ger;,期刊:Journal of Organic Chemistry, 页码:554-561 , 文章类型: 研究论文,,卷期:2009年74-2]
- Highly concise syntheses of (+)-macrosphelides A and B I (R = OH, R1 = H; RR1 = O, resp.) were accomplished in this study. The key feature of our synthetic route involved the direct three-carbon homologation of the read...
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