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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43条记录   Solid-State Thiotropolone: An Extremely Rapid Intramolecular Proton Transfer [作者：MACHIGUCHI TAKAHISA; HASEGAWA TOSHIO; SAITOH HIDEKI; YAMABE SHINICHI; YAMAZAKI SHOKO,期刊：Journal of Organic Chemistry, 页码：5457-5460 , 文章类型： Article，,卷期：2011年76-13] Through variable-temperature solution-state NMR and molten- and solid-state CP/MAS C NMR spectra, thiotropolone is found to exist as two rapidly equilibrated tautomeric structures, thione and enethiol, even in the solid ... Chromium-Mediated Stereoselective Synthesis of Carbohydrate-Derived (E)-alpha,beta-Unsaturated Esters or Amides [作者：RODRIGUEZSOLLA HUMBERTO; CONCELLON CARMEN; BLANCO ELENA G; SARMIENTO JUAN IGNACIO; DIAZ PAMELA; SOENGAS RAQUEL G,期刊：Journal of Organic Chemistry, 页码：5461-5465 , 文章类型： Article，,卷期：2011年76-13] A chromium-mediated novel synthesis of carbohydrate-derived di- and trisubstituted (E)-alpha,beta-unsaturated esters or amides from a range of dichloroesters or amides and a variety of sugar aldehydes is reported. The pr... High 1,3-trans Stereoselectivity in Nucleophilic Substitution at the Anomeric Position and beta-Fragmentation of the Primary Alkoxyl Radical in 3-Amino-3-deoxy-ribofuranose Derivatives: Application to the Synthesis of 2-epi-(-)-Jaspine B [作者：SANCHEZELEUTERIO ALMA; QUINTERO LETICIA; SARTILLOPISCIL FERNANDO,期刊：Journal of Organic Chemistry, 页码：5466-5471 , 文章类型： Article，,卷期：2011年76-13] The high inverse stereoselectivity in the nucleophilic substitution at the anomeric position of 3-amino-3-deoxy-ribofuranose derivatives is reported. This unprecedented stereoselectivity is explained in terms of preferen... Diastereoselective Synthesis of the Leu-Pro Type Phosphinyl Dipeptide Isostere [作者：YAMAGISHI TAKEHIRO; TASHIRO NAOKO; YOKOMATSU TSUTOMU,期刊：Journal of Organic Chemistry, 页码：5472-5476 , 文章类型： Article，,卷期：2011年76-13] A diastereoselective synthesis of the Leu-Pro type phosphinyl dipeptide isostere in its protected form was achieved from stereodefined alpha-amino-H-phosphinate. The methodology involved a cross-coupling reaction with al... Formal Total Synthesis of (-)-Oseltamivir Phosphate [作者：TANAKA TAKANORI; TAN QITAO; KAWAKUBO HIROMU; HAYASHI MASAHIKO,期刊：Journal of Organic Chemistry, 页码：5477-5479 , 文章类型： Article，,卷期：2011年76-13] An asymmetric synthesis of chiral intermediate 3 for (-)-oseltamivir phosphate has been accomplished from chiral building block 1, which was prepared by catalytic asymmetric synthesis. Enantioselective Synthesis of Diverse Sulfinamides and Sulfinylferrocenes from Phenylglycine-Derived Chiral Sulfinyl Transfer Agent [作者：HAN ZHENGXU S; MEYER ANGELICA M; XU YIBO; ZHANG YONGDA; BUSCH ROBERT; SHEN SHERRY; GRINBERG NELU; LU BRUCE Z; KRISHNAMURTHY DHILEEP; SENANAYAKE CHRIS H,期刊：Journal of Organic Chemistry, 页码：5480-5484 , 文章类型： Article，,卷期：2011年76-13] A new chiral sulfinyl, transfer auxiliary derived from readily available phenylglycine was developed. This auxiliary is utilized to synthesize a diverse array of alkyl- and arylsulfinamides and sulfinylferrocenes in high... Retention of Regiochemistry and Chirality in the Ruthenium Catalyzed Allylic Alkylation of Disubstituted Allylic Esters [作者：KAWATSURA MOTOI; SATO MICHINOBU; TSUJI HIROAKI; ATA FUMIO; ITOH TOSHIYUKI,期刊：Journal of Organic Chemistry, 页码：5485-5488 , 文章类型： Article，,卷期：2011年76-13] The regiospecific nucleophilic substitution during the ruthenium catalyzed allylic alkylation of 1,3-unsymmetrical disubstituted allylic esters was demonstrated. The nucleophile was selectively introduced at the position... Palladium-Catalyzed Carbon-Monoxide-Free Aminocarbonylation of Aryl Halides Using N-Substituted Formamides as an Amide Source [作者：SAWANT DINESH N; WAGH YOGESH S; BHATTE KUSHAL D; BHANAGE BHALCHANDRA M,期刊：Journal of Organic Chemistry, 页码：5489-5494 , 文章类型： Article，,卷期：2011年76-13] A carbon-monoxide-free aminocarbonylation of various N-substituted formamides with aryl iodides and aryl bromides using palladium acetate and Xantphos is described. The developed methodology is applicable for a wide rang... Catalyst Control in Sequential Asymmetric Allylic Substitution: Stereodivergent Access to N,N-Diprotected Unnatural Amino Acids [作者：TOSATTI PAOLO; CAMPBELL AMANDA J; HOUSE DAVID; NELSON ADAM; MARSDEN STEPHEN P,期刊：Journal of Organic Chemistry, 页码：5495-5501 , 文章类型： Article，,卷期：2011年76-13] The sequential use of Cu-catalyzed asymmetric allylic alkylation, olefin cross-metathesis, and Ir-catalyzed asymmetric allylic amination allows the concise, stereodivergent synthesis of complex chiral amines with complet... Total Synthesis of Unguisin A [作者：HUNTER LUKE; CHUNG JONATHAN H,期刊：Journal of Organic Chemistry, 页码：5502-5505 , 文章类型： Article，,卷期：2011年76-13] The first synthesis of the gamma-aminobutyric acid (GABA)-containing cyclic heptapeptide unguisin A is reported, confirming the structure of this natural product. Macrocyclization of a flexible GABA-containing linear pre... Formal Total Synthesis of (+)-Lysergic Acid via Zinc(II)-Mediated Regioselective Ring-Opening Reduction of 2-Alkynyl-3-indolyloxirane [作者：IWATA AKIRA; INUKI SHINSUKE; OISHI SHINYA; FUJII NOBUTAKA; OHNO HIROAKI,期刊：Journal of Organic Chemistry, 页码：5506-5512 , 文章类型： Article，,卷期：2011年76-13] Asymmetric formal synthesis of (+)-lysergic acid was achieved with a reductive ring-opening reaction of chiral 2-alkynyl-3-indolyloxirane with NaBH3CN as the key step. With Zn(OTf)(2) as an additive, the ring-opening rea... Ring-Expanded Bicyclic beta-Lactams: A Structure-Chiroptical Properties Relationship Investigation (vol 76, pg 3306, 2011) [作者：WOZNICA MAGDALENA; BUTKIEWICZ ALEKSANDRA; GRZYWACZ ANETA; KOWALSKA PATRYCJA; MASNYK MAREK; MICHALAK KAROL; LUBORADZKI ROMAN; FURCHE FILIPP; GRIMME STEFAN; KRUSE HOLGER; FRELEK JADWIGA,期刊：Journal of Organic Chemistry, 页码：5513-5513 , 文章类型： Correction，,卷期：2011年76-13] Study of the Stereoselectivity of 2-Azido-2-deoxygalactosyl Donors: Remote Protecting Group Effects and Temperature Dependency [作者：KALIKANDA JANE; LI ZHITAO,期刊：Journal of Organic Chemistry, 页码：5207-5218 , 文章类型： Article，,卷期：2011年76-13] The stereoselectivity of glycosylation reactions is affected by many factors. Synthesis of 1,2-cis glycosidic linkages (such as a linkages in glucose and galactose like monosaccharides) is challenging due to lack of cont... Fluorescent Proton Sensors Based on Energy Transfer [作者：THIVIERGE CLIFERSON; HAN JUNYAN; JENKINS ROXANNE M; BURGESS KEVIN,期刊：Journal of Organic Chemistry, 页码：5219-5228 , 文章类型： Article，,卷期：2011年76-13] Photophysical data and orbital energy levels (from electrochemistry) were compared for molecules with the same BODIPY acceptor part (red) and perpendicularly oriented xanthene or BODIPY donor fragments (green). Transfer ... Synthesis of Biantennary Complex-Type Nonasaccharyl Asn Building Blocks for Solid-Phase Glycopeptide Synthesis [作者：HAGIWARA MASASHI; DOHI MIZUKI; NAKAHARA YUKO; KOMATSU KEIKO; ASAHINA YUYA; UEKI AKIHARU; HOJO HIRONOBU; NAKAHARA YOSHIAKI; ITO YUKISHIGE,期刊：Journal of Organic Chemistry, 页码：5229-5239 , 文章类型： Article，,卷期：2011年76-13] The biantennary complex-type N-glycans bearing LacNAc and LacdiNAc as the nonreducing end motif were synthesized in a protected form suitable to use in the Fmoc solid-phase peptide synthesis studies. Two approaches for t... Selective Sulfoxidation of Thioethers and Thioaryl Boranes with Nitrate, Promoted by a Molybdenum-Copper Catalytic System [作者：MAROM HANIT; ANTONOV SVETLANA; POPOWSKI YANAY; GOZIN MICHAEL,期刊：Journal of Organic Chemistry, 页码：5240-5246 , 文章类型： Article，,卷期：2011年76-13] The catalytic reduction of nitrate by molybdo-enzymes plays a central role in the global biological cycle of nitrogen. However, the use of nitrates as oxidants in synthetic organic chemistry is very limited and typically...