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Attributs	Valeurs
type	work Issue
Is Part Of	http://hub.abes.fr/acs/periodical/joceah/1991/volume_56
has manifestation of work	http://hub.abes.fr/acs/periodical/joceah/1991/volume_56/issue_23/m/print http://hub.abes.fr/acs/periodical/joceah/1991/volume_56/issue_23/m/web
issue	23
is Is Part Of of	An unusual .gamma.-silyl effect in titanium tetrachloride catalyzed arylation of 1,4-benzoquinones ESR studies of nitrogen-centered free radicals. 40. Exceptionally persistent nitrogen-centered free radicals. Preparation, isolation, and molecular structure of N-(arylthio)-2,4,6-triphenylanilino radicals Experimental and calculated activation parameters for ring opening of the 1-bicyclo[1.1.1]pentyl radical: the effect of bridgehead substituents [Erratum to document cited in CA115(9):91450d] Stereoselective opening of chiral dioxane acetals. Nucleophile dependence The furan approach to oxygenated natural products. Total synthesis of (+)-KDO Electrochemistry of anilines. 6. Reactions of electrogenerated biphenylylnitrenium ions [Erratum to document cited in CA115(5):49019v] Cyclodextrin-induced conformational enantiomerism of dinaphthylmethanes Round-trip radical probes: ring cleavage of the bicyclo[1.1.1]pentylcarbinyl radical Isodicyclopentadienes and related molecules. 53. Unsymmetrical oxidative cleavage of cyclic ketones. Conversion to .omega.-ethoxycarbonyl aldoximes under alkaline conditions [Erratum to document cited in CA114(9):81071w] Palladium-catalyzed polycyclization of dienynes: surprisingly facile formation of tetracyclic systems containing a three-membered ring Adaptation of oxyanionic sigmatropy to the convergent enantioselective synthesis of ambergris-type odorants Total synthesis of (-)-colletol Mechanistic study of a synthetically useful monooxygenase model using the hypersensitive probe trans-2-phenyl-1-vinylcyclopropane Regioselectivity in the acid-catalyzed isomerization of 2-substituted 1,4-dihydro-1,4-epoxynaphthalenes Correlations between the solvent hydrogen-bond-donating parameter .alpha. and the calculated molecular surface electrostatic potential A one-pot synthesis of sulfenamides A new three-carbon homologating agent for synthesis of .gamma.-keto aldehydes New agents for the selective reduction of the carbon-carbon double bond of .alpha.,.beta.-unsaturated carbonyl compounds Ozonolysis of vinyl ethers in the presence of .alpha.-diketones and .alpha.-keto esters An organic tridentate ligand stabilizing a 10-I-4 iodinane oxide and related species Palladium-catalyzed carbonylative cyclization of o-allylbenzyl halides to produce benzo-annulated enol lactones and/or bicyclo[3.3.0]hept-3-en-6-ones. An efficient route to U-68,215 Preparation of N-substituted phthalimides by the palladium-catalyzed carbonylation and coupling of o-dihalo aromatics and primary amines Studies of N-terminal templates for .alpha.-helix formation. Synthesis and conformational analysis of (2S,5S,8S,11S)-1-acetyl-1,4-diaza-3-keto-5-carboxy-10-thiatricyclo[2.8.1.04,8]tridecane (Ac-Hel1-OH) Stereochemistry in nucleophilic vinylic substitution of activated nitro olefins. 2 1,2,3-Benzoxathiazole 2,2-dioxides: synthesis, mechanism of hydrolysis, and reactions with nucleophiles An efficient synthesis of 2-vinylbenzimidazoles from 1-(2-(benzimidazol-2-ylethyl)pyridinium salts using an anion-exchange resin Transformation of neoclerodane diterpenoids into 19-norneoclerodane derivatives Studies of N-terminal templates for .alpha.-helix formation. Synthesis and conformational analysis of peptide conjugates of (2S,5S,8S,11S)-1-acetyl-1,4-diaza-3-keto-5-carboxy-10-thiatricyclo[2.8.1.04,8]tridecane (Ac-Hel1-OH) Synthetic methods. 31. .alpha.-Substituted cyclobutanones as protecting groups for carboxylic acids [Erratum to document cited in CA111(21):194163j] Stereoselective addition reactions of chiral .alpha.-sulfinyl ketimine anions with ene esters. Facile asymmetric synthesis of indolo[2,3-a]quinolizidine and yohimbanoid alkaloids [Erratum to document cited in CA112(1):7775w] Stereochemistry of metalated aldimines. 1. An ab initio study of the potential energy surfaces of isolated acetaldimine anions, their monomeric lithium and sodium ion pairs, and mechanistic consequences Stereospecific methylation of .gamma.,.delta.-epoxy acrylates by trimethylaluminum: a method for the iterative construction of polypropionate chains Horsfiline, an oxindole alkaloid from Horsfieldia superba Base-induced and -directed elimination and rearrangement of perhydronaphthalene-1,4-diol monosulfonate esters. Total synthesis of (.+-.)-alloaromadendrane-4.beta.,10.alpha.-diol and (.+-.)-alloaromadendrane-4.alpha.,10.alpha.-diol A new procedure for the conversion of thiols into reactive sulfenylating agents Evidence for ketene intermediates in the reactions of 2-oxobutanedioic acid diesters with alcohols and water [Erratum to document cited in CA112(25):234775q] Enantiomeric synthesis of (+)-BCH-189 [(+)-(2S,5R)-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine] from D-mannose and its anti-HIV activity Studies on nitrogen metabolism using carbon-13 NMR spectroscopy. 6. Biosynthesis of sarubicin A. Synthesis and incorporation of 6-hydroxy[13CO15NH2]anthranilamide Palladium-catalyzed coupling of 2-bromonaphthoquinones with stannanes: a concise synthesis of antibiotics WS 5995 A and C and related compounds Transmetalation reactions of alkylzirconocenes: copper-catalyzed conjugate addition to enones Studies directed at the synthesis of optically active pretazettine via intramolecular nitrone/alkene cycloaddition reactions Masthead Probing a molecular model of taste utilizing peptidomimetic stereoisomers of 2-aminocyclopentanecarboxylic acid methyl ester Cyclopenta[cd] pyrene and monomethyl isomers Bioactive bromopyrrole metabolites from the Caribbean sponge Agelas conifera [Erratum to document cited in CA114(19):182417u] Conformational study of (R)-(-)-2,2,2-trifluoro-1-(9-anthryl)ethanol (Pirkle's alcohol) by dynamic NMR Benzoin enediol dianion and hydroxide ion in DMSO: a single electron transfer reduction system driven by the irreversible benzilic acid rearrangement Cytotoxic five-membered cyclic peroxides from a Plakortis sponge Total synthesis of 6-deoxy-6-aminoheptopyranuronic acid derivatives Models for the use of .alpha.-amino acids as chiral auxiliaries in asymmetric Diels-Alder reactions An efficient synthesis of hydroxyethylene dipeptide isosteres: the core unit of potent HIV-1 protease inhibitors Synthetic studies on the macrodiolide elaiophylin Reaction of enol silyl ethers and enol acetates with copper(II) nitrate-iodine: synthesis of .alpha.-iodo ketones Accurate determination of small splitting constants for organic radicals by NMR Stereospecific nucleophilic addition reactions to olefins. Addition of thiols to .alpha.,.beta.-unsaturated carboxylic acid derivatives Stereochemistry of metalated aldimines. 2. A theoretical study of dimeric ion-pair aggregates of isomeric lithioacetaldimines and of their kinetically controlled reaction with formaldehyde Direct cleavage of peptides from a solid support into aqueous buffer. Application in simultaneous multiple peptide synthesis

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