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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34条记录   Synthesis of pyrenolide D analogues. [作者：Robertson, Jeremy;Stevens, Kiri;Naud, Sebastien;,期刊：SYNLETT, 页码：2083-2086 , 文章类型： 研究论文，,卷期：2008年-14] We present a short, enantiospecific synthesis of 4 hydroxylated analogs of pyrenolide D from D-glucose based on furan oxidative spirocyclization. A low-temperature ammonium ylid rearrangement: enhanced reactivity engendered by rigidity. [作者：Sancon, Julien;Sweeney, J. B.;,期刊：SYNLETT, 页码：2213-2214 , 文章类型： 研究论文，,卷期：2008年-14] Sigmatropic rearrangement of tetrahydropyridine-derived ammonium is a valuable method for the prepn. of substituted prolines. For example, azabicyclo[3.3.0]octene I was treated with BrCH2CO2Me in DMF at -15? followed by... Synthesis of a biotin-labeled quorum-sensing molecule: towards a general method for target identification. [作者：Spandl, Richard J.;Nicholson, Rebecca L.;Marsden, David M.;Hodgkinson, James T.;Su, Xianbin;Thomas, Gemma L.;Salmond, George P. C.;Welch, Martin;Spring, David R.;,期刊：SYNLETT, 页码：2122-2126 , 文章类型： 研究论文，,卷期：2008年-14] The synthesis of bacterial quorum-sensing regulator N-(3-oxohexanoyl)-L-homoserine lactone (OHHL) and biotin-tagged OHHL is reported. The latter will be applied to developing a general method to address the "target iden... Chemoenzymatic synthesis of enantiopure structured triacylglycerols. [作者：Kristinsson, Bjoern;Haraldsson, Gudmundur G.;,期刊：SYNLETT, 页码：2178-2182 , 文章类型： 研究论文，,卷期：2008年-14] A highly efficient chemoenzymic method for the synthesis of enantiopure ABC-type asym. structured triacylglycerols was developed starting from enantiopure (S)-solketal and involving 2 lipase steps. Synthesis of mucin glycans from the protozoon parasite Trypanosoma cruzi. [作者：van Well, Renate M.;Collet, Beatrice Y. M.;Field, Robert A.;,期刊：SYNLETT, 页码：2175-2177 , 文章类型： 研究论文，,卷期：2008年-14] A short, blockwise, 2+2-glycosylation approach to the synthesis of a tetrasaccharide component of Trypanosoma cruzi mucin is reported. and good stereocontrol (>10:1, b:a) were achieved in the key glycosylation step. Pre... The enantioselective total synthesis and unambiguous proof of the absolute stereochemistry of pervilleine C. [作者：Kulkarni, Ketav;Zhao, Anne Y.;Purcell, Anthony W.;Perlmutter, Patrick;,期刊：SYNLETT, 页码：2209-2212 , 文章类型： 研究论文，,卷期：2008年-14] The first enantioselective, total synthesis of the naturally occurring, potent cancer MDR reversal agent pervilleine C is reported. Each enantiomer of the natural product was prepd. as well as the enantiomers of the cor... Desymmetrisation of biphenyl-based carbohydrate receptors: a nonbonding pillar in one corner of the cage. [作者：Challinor, Lee;Klein, Emmanuel;Davis, Anthony P.;,期刊：SYNLETT, 页码：2137-2141 , 文章类型： 研究论文，,卷期：2008年-14] A new addn. to the family of biphenyl-based carbohydrate receptors, derived by replacing 1 out of 4 isophthalamide (diamide) linkages with the corresponding diester, was reported. The alteration results in lower binding... Microwave enhancement of a "one-pot" tandem azidation-"click" cycloaddition of anilines. [作者：Moorhouse, Adam D.;Moses, John. E.;,期刊：SYNLETT, 页码：2089-2092 , 文章类型： 研究论文，,卷期：2008年-14] The practical and efficient 1-pot azidation of anilines with the reagent combination tert-BuONO and Me3SiN3 became a useful addn. to the click-chem. toolbox. A modification of this methodol. was reported, using microwav... A regiospecific approach to N-alkylpyrazoles and the derived N-oxides using 5-endo-dig cyclisations of alkynyl nitrosamines. [作者：Hayes, Simon J.;Knight, David W.;O'Halloran, Mark;Pickering, Stuart R.;,期刊：SYNLETT, 页码：2188-2190 , 文章类型： 研究论文，,卷期：2008年-14] 5-Endo-dig cyclization of N-nitroso derivs. of homopropargylic amines, catalyzed by AgNO3 on SiO2 proceed smoothly at ambient temp. in chlorinated solvents to give essentially quant. yields of the corresponding pyrazole ... Synthesis of isoxazoline-fused bicyclic enediynes via intramolecular nitrile oxide-alkene cycloaddition. [作者：Basak, Amit;Pal, Runa;,期刊：SYNLETT, 页码：2115-2118 , 文章类型： 研究论文，,卷期：2008年-14] The intramol. nitrile oxide-alkene cycloaddn. was studied in an enediyne system. It is an efficient method for the 1-step synthesis of isoxazoline-fused bicyclic enediynes. The thermal reactivity of these enediynes is ... Palladium-mediated synthesis of phenanthridines: the first report of palladium insertion into imidoyl selenides. [作者：Bowman, W. Russell;Lyon, Jessica E.;Pritchard, Gareth J.;,期刊：SYNLETT, 页码：2169-2171 , 文章类型： 研究论文，,卷期：2008年-14] Imidoyl Ph selenides were shown to be precursors to phenanthridines, when treated with Pd(PPh3)4 under reflux in toluene in the presence of a base, giving reasonable yields. It is proposed that insertion of palladium in... Titanium(IV)(salen) and vanadium(V)(salen) complexes derived from C2- and C1-symmetric diamines for asymmetric cyanohydrin synthesis. [作者：Belokon, Yuri N.;Hunt, Jamie;North, Michael;,期刊：SYNLETT, 页码：2150-2154 , 文章类型： 研究论文，,卷期：2008年-14] Derivatives, and Condensed Benzenoid Compounds) Section Titanium and vanadium salen complexes have been prepd. from C2- and C1-sym. acyclic diamines. All of the complexes catalyzed the asym. addn. of trimethylsilyl cyan... One-pot reduction of aryl iodides using 4-DMAP methiodide salt. [作者：Garnier, Jean;Murphy, John A.;Zhou, Sheng-Ze;Turner, Andrew T.;,期刊：SYNLETT, 页码：2127-2131 , 文章类型： 研究论文，,卷期：2008年-14] 22, 27, 28 An efficient 1-pot procedure is described for the redn. of aryl iodides to aryl anions using a structurally simple bis-pyridinylidene electron donor, prepd. in situ by treating 4-DMAP methiodide salt with base... Observations on the synthesis and carbocyclisation reactions of 6-oxohexa-2,3-dienoates. [作者：Gray, Philip J.;Motherwell, William B.;Sheppard, Tom D.;Whitehead, Andrew J.;,期刊：SYNLETT, 页码：2097-2100 , 文章类型： 研究论文，,卷期：2008年-14] 6-Oxohexa-2,3-dienoates can be readily prepd. via an atom economical Claisen rearrangement of propargyl vinyl ethers formed in situ by the reaction of propargylic alcs. with acetals. Preliminary expts. demonstrated that... Iodine-catalyzed allylic alkylation of thiols with allylic alcohols. [作者：Zhang, Xiaoxiang;Rao, Weidong;Chan, Philip Wai Hong;,期刊：SYNLETT, 页码：2204-2208 , 文章类型： 研究论文，,卷期：2008年-14] An efficient iodine-catalyzed allylic alkylation of a wide variety of aryl and alkyl thiols with allylic alcs. is reported. The reaction is operationally straightforward, tolerant to air and moisture, and proceeds under... The conversion of carbonyl compounds into pentadienylamines by a Julia-Kocienski olefination procedure. [作者：Bastin, Reyhan;Liron, Melanie;Taylor, Richard J. K.;,期刊：SYNLETT, 页码：2183-2187 , 文章类型： 研究论文，,卷期：2008年-14] Julia-Kocienski olefination has been successfully employed to convert carbonyl compds. into the corresponding Boc-protected 1,3-pentadienyl amines in a C4N homologation process. Good to excellent yields are achieved in ...