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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73条记录   Analogies between Synthetic and Biosynthetic Reactions in Which [1,2]-Alkyl Shifts Are Combined with Other Events: Dyotropic, Schmidt, and Carbocation Rearrangements [作者：GUTIERREZ OSVALDO; TANTILLO DEAN J,期刊：Journal of Organic Chemistry, 页码：8845-8850 , 文章类型： Article，,卷期：2012年77-20] A survey of computational studies on the mechanisms of dyotropic, Schmidt, and related reactions is presented. Connections between synthetically applied versions of these processes and those predicted to occur during bio... Synthetic Routes to Fluorescent Dyes Exhibiting Large Stokes Shifts [作者：RIHN SANDRA; RETAILLEAU PASCAL; DE NICOLA ANTOINETTE; ULRICH GILLES; ZIESSEL RAYMOND,期刊：Journal of Organic Chemistry, 页码：8851-8863 , 文章类型： Article，,卷期：2012年77-20] Derivatives of isomeric 2-(hydroxytolyl)-4,6-dimethylamino-1,3,5-triazines have been synthesized in high yields in a controlled manner using a multistep reaction sequence. Iodination of either 2-(1'-hydroxy-6'-methylphen... Challenging Deprotection Steps During the Synthesis of Tetra- and Pentasaccharide Fragments of the Le(a)Le(x) Tumor-Associated Hexasaccharide Antigen [作者：GUILLEMINEAU MICKAEL; AUZANNEAU FRANCEISABELLE,期刊：Journal of Organic Chemistry, 页码：8864-8878 , 文章类型： Article，,卷期：2012年77-20] We report the convergent synthesis of two novel tetrasaccharide and two novel pentasaccharide fragments of the Le(a)Le(x) TACA: the tetrasaccharides contain neither the galactose at the Le(a) nonreducing end nor the fuco... Avoiding Steric Congestion in Dendrimer Growth through Proportionate Branching: A Twist on da Vinci's Rule of Tree Branching [作者：YUE XUYI; TARABAN MARC B; HYLAND LAURA L; YU YIHUA BRUCE,期刊：Journal of Organic Chemistry, 页码：8879-8887 , 文章类型： Article，,卷期：2012年77-20] Making defect-free macromolecules is a challenging issue in chemical synthesis. This challenge is especially pronounced in dendrimer synthesis where exponential growth quickly leads to steric congestion. To overcome this... Study on Metal-Induced Reactions of alpha-Diazocarbonyl Glucosides [作者：GUAN ZHU; ZHANG LIHE; SINAY PIERRE; ZHANG YONGMIN,期刊：Journal of Organic Chemistry, 页码：8888-8895 , 文章类型： Article，,卷期：2012年77-20] Conversions of diazocarbonyl carbohydrate compounds catalyzed by a series of rhodium and copper catalysts in conventional heating or microwave conditions were investigated. C-H insertion product was obtained in the prese... Synthesis of Deuterated 1,2,3-Triazoles [作者：AKULA HARI K; LAKSHMAN MAHESH K,期刊：Journal of Organic Chemistry, 页码：8896-8904 , 文章类型： Article，,卷期：2012年77-20] The copper-catalyzed azide alkyne cycloaddition (CuAAC) is a highly effective method for the selective incorporation of deuterium atom into the C-5 position of the 1,2,3-triazole structure. Reactions of alkynes and azide... Stereoselective C-Glycoside Formation with 2-O-Benzyl-4,6-O-benzylidene Protected 3-Deoxy Gluco- and Mannopyranoside Donors: Comparison with O-Glycoside Formation [作者：MOUMEPYMBOCK MYRIAME; CRICH DAVID,期刊：Journal of Organic Chemistry, 页码：8905-8912 , 文章类型： Article，,卷期：2012年77-20] Unlike alcohols, the reaction of C-nucleophiles with 2-O-benzyl-4,6-O-benzylidene-protected 3-deoxy-gluco- and mannopyranosyl thioglycosides is highly stereoselective providing the alpha-C-glycosides in the gluco-series ... Enantioselective Total Synthesis of the Mexicanolides: Khayasin, Proceranolide, and Mexicanolide [作者：FABER JONATHAN M; EGER WILHELM A; WILLIAMS CRAIG M,期刊：Journal of Organic Chemistry, 页码：8913-8921 , 文章类型： Article，,卷期：2012年77-20] The enantioselective total synthesis of the limonoids khayasin, proceranolide and mexicanolide was achieved via a convergent strategy utilizing a tactic aimed at incorporating natural products as advanced intermediates. ... Dihydroazulene-Buckminsterfullerene Conjugates [作者：SANTELLA MARCO; MAZZANTI VIRGINIA; JEVRIC MARTYN; PARKER CHRISTIAN RICHARD; BROMAN SOREN LINDBAEK; BOND ANDREW D; NIELSEN MOGENS BRONDSTED,期刊：Journal of Organic Chemistry, 页码：8922-8932 , 文章类型： Article，,卷期：2012年77-20] The dihydroazulene (DHA)/vinylheptafulvene (VHF) photo/thermoswitch has recently attracted interest as a molecular switch for molecular electronics. In this field, Buckminsterfullerene, C-60, has been shown to be a usefu... Stereochemical Study of a Transannular Michael Reaction Cascade [作者：XUE HAORAN; GOPAL PEDDABUDDI; YANG JIONG,期刊：Journal of Organic Chemistry, 页码：8933-8945 , 文章类型： Article，,卷期：2012年77-20] We systematically explored a transannular Michael reaction cascade for stereoselective synthesis of polycyclic systems. Both E,Z- and E,E- 1,7-bis-enones in the form of 14-membered macrocyclic lactones Underwent transann... Reaction Pathway and Free Energy Profile for Conversion of pi-Conjugation Modes in Porphyrin Isomer [作者：MATSUO TAKASHI; TOHI YUJI; HAYASHI TAKASHI,期刊：Journal of Organic Chemistry, 页码：8946-8955 , 文章类型： Article，,卷期：2012年77-20] Porphycene is a structural isomer of porphyrin with 18 pi-conjugated aromatic character. Porphycene modified with trifluoromethyl (CF3) groups in the periphery of the framework readily affords the isolable 20 pi-conjugat... Four-Component Cascade Heteroannulation of Heterocyclic Ketene Aminals: Synthesis of Functionalized Tetrahydroimidazo[1,2-a]pyridine Derivatives [作者：LI MING; SHAO PENG; WANG SHUWEN; KONG WEI; WEN LIRONG,期刊：Journal of Organic Chemistry, 页码：8956-8967 , 文章类型： Article，,卷期：2012年77-20] An efficient and straightforward four-component synthetic protocol has been developed to synthesize imidazo[1,2-a]pyridines and imidazo[1,2,3-ij][1,8]naphthyridine derivatives incorporating medicinally privileged heteros... Modification and Optimization of the Bis-picolylamide-Based Relay Protection for Carboxylic Acids to be Cleaved by Unusual Complexation with Cu2+ Salts [作者：MUNDINGER STEPHAN; JAKOB UWE; BICHOVSKI PLAMEN; BANNWARTH WILLI,期刊：Journal of Organic Chemistry, 页码：8968-8979 , 文章类型： Article，,卷期：2012年77-20] A simple modification of our recently published protection scheme for carboxylic acids as amides resulted in a new protecting group with significantly improved properties. It requires shorter reaction times for deprotect... Regio- and Enantioselective Palladium-Catalyzed Allylic Alkylation of Nitromethane with Monosubstituted Allyl Substrates: Synthesis of (R)-Rolipram and (R)-Baclofen [作者：YANG XIAOFEI; DING CHANGHUA; LI XIAOHUI; HUANG JIANQIANG; HOU XUELONG; DAI LIXIN; WANG PINJIE,期刊：Journal of Organic Chemistry, 页码：8980-8985 , 文章类型： Article，,卷期：2012年77-20] The Pd-catalyzed asymmetric allylic alkylation (AAA) reaction of nitromethane with monosubstituted allyl substrates was realized for the first time to provide corresponding products in high yields with excellent regio-an... Method for Estimating S(N)1 Rate Constants: Solvolytic Reactivity of Benzoates [作者：MATIC MIRELA; DENEGRI BERNARD; KRONJA OLGA,期刊：Journal of Organic Chemistry, 页码：8986-8998 , 文章类型： Article，,卷期：2012年77-20] Nucleofugalities of pentafluorobenzoate (PFB) and 2,4,6-trifluorobenzoate (TFB) leaving groups have been derived from the solvolysis rate constants of X,Y-substituted benzhydryl PFBs and TFBs measured in a series of aque... Synthesis of Phenol Derivatives from Cyclohex-2-enones Bearing an Alkyne through Lewis Acid-Catalyzed Enolization and Intramolecular Alder-Rickert Reaction [作者：KINBARA ATSUSHI; YAMAGISHI TAKEHIRO; HANZAWA NAOKO; KAWASHIMA ETSUKO; MIYAOKA HIROAKI,期刊：Journal of Organic Chemistry, 页码：8999-9005 , 文章类型： Article，,卷期：2012年77-20] A cationic rhodium(I) complex- or In(OTf)(3)-catalyzed synthesis of phenol derivatives from cyclohex-2-enone having an ethoxycarbonyl-substituted alkyne has been achieved. This reaction proceeds via enolization and an in...