- Imino-Diels-Alder reactions of 1-aryl-3-(trialkylsiloxy)-1,3-butadienes in solution and the solid phase.
[作者:Caballero, Esther;Figueroa, Javier;Puebla, Pilar;Pelaez, Rafael;Tome, Fernando;Medarde, Manuel;,期刊:European Journal of Organic Chemistry, 页码:4004-4014 , 文章类型: 研究论文,,卷期:2008年-23]
- Imino-Diels-Alder reactions between 1-aryl- or 1-heteroaryl-3-(trialkylsiloxy)-1,3-butadienes and imines derived from Et glyoxylate have been studied. When an achiral imine was used, the diastereoselectivity depended on...
- Multicomponent domino reaction promoted by Mg(ClO4)2: highly efficient access to functionalized 1,4-dihydropyridines.
[作者:Bartoli, Giuseppe;Bosco, Marcella;Glazerano, Patrizia;Giri, Roberto;Mazzanti, Andrea;Melchiorre, Paolo;Sambri, Letizia;,期刊:European Journal of Organic Chemistry, 页码:3970-3975 , 文章类型: 研究论文,,卷期:2008年-23]
- An efficient, one-pot multicomponent synthetic protocol toward substituted 1,4-dihydropyridines from arom. amines, b-keto derivs., and Et propiolate mediated by Mg(ClO4)2 is described. When ortho- or meta-substituted ar...
- Catalytic hydrogenation of 5,6-dihydro-4H-1,2-oxazines bearing a functionalized methylene group at C-3.
[作者:Sukhorukov, Alexey Yu.;Lesiv, Alexey V.;Eliseev, Oleg L.;Khomutova, Yulia A.;Ioffe, Sema L.;Borissova, Alexandra O.;,期刊:European Journal of Organic Chemistry, 页码:4025-4034 , 文章类型: 研究论文,,卷期:2008年-23]
- The catalytic hydrogenation of readily available Me 2-(5,6-dihydro-4H-1,2-oxazin-3-yl)acetates (I) has been studied. I without an alkoxy substituent at C-6 under mild hydrogenation conditions in methanol produce a dynam...
- g-(Hydroxyalkyl)naphthalene-tetracarboxdiimides: organic white pigments.
[作者:Langhals, Heinz;Ritter, Ulrike;,期刊:European Journal of Organic Chemistry, 页码:3912-3915 , 文章类型: 研究论文,,卷期:2008年-23]
- Organic Pigments, Fluorescent Brighteners, and Photographic Five naphthalene-1,8:4,5-tetracarboxylic diimide deriv. pigments are prepd. from Me cyanoacetate by its alkylation, redn., and condensation with naphthalenetetr...
- Stereoselective synthesis of novel cyclic g-amino acids and triazole derivatives.
[作者:Prazeres, Veronica F. V.;Castedo, Luis;Gonzalez-Bello, Concepcion;,期刊:European Journal of Organic Chemistry, 页码:3991-4003 , 文章类型: 研究论文,,卷期:2008年-23]
- Four polyhydroxylated g-azido and three g-amino acids (I) (R1 = H, R2 = OH, R3 = H, R4 = OH, R5 = H, R6 = N3 or NHBoc; R1 = H, R2 = OH, R3 = OH, R4 = H, R5 = H, R6 = N3; R1 = OH, R2 = H, R3 = H, R4 = OH, R5 = H, R6 = N3 ...
- Synthesis of some 2,2':6',2''-terpyridines disubstituted in positions 6 and 6'' with head-to-tail oriented amino acids and dipeptides: a simple entry to a reversible inducer of folding in amino acid sequences.
[作者:Annunziata, Rita;Benaglia, Maurizio;Puglisi, Alessandra;Raimondi, Laura;Cozzi, Franco;,期刊:European Journal of Organic Chemistry, 页码:3976-3983 , 文章类型: 研究论文,,卷期:2008年-23]
- The 2,2':6',2''-terpyridine scaffold has been identified as a conformationally discrete structural element potentially capable of inducing reversible folding in substituents, attached through suitable spacers to its 6,6'...
- J-based analysis and DFT-NMR assignments of natural complex molecules: application of 3b,7-dihydroxy-5,6-epoxycholestanes.
[作者:Poza, Jesus Javier;Jimenez, Carlos;Rodriguez, Jaime;,期刊:European Journal of Organic Chemistry, 页码:3960-3969 , 文章类型: 研究论文,,卷期:2008年-23]
- hydroxy functionalities, four 3b,7-dihydroxy-5,6-epoxycholestanes were easily prepd. from cholesterol, and their NMR spectroscopic data were exptl. obtained from 1D and 2D NMR expts. An exhaustive QM-J-based anal. was t...
- Convergent and selective synthesis of pyrrolidinones, piperidinones, dihydropyridinones and pyridinols from a common intermediate - potential precursors of bioactive products.
[作者:Jida, Mouhamad;Ollivier, Jean;,期刊:European Journal of Organic Chemistry, 页码:4041-4049 , 文章类型: 研究论文,,卷期:2008年-23]
- Titanium-mediated cyclopropanation of natural and unnatural 3-amino ester derivs. provides azabicyclo[3.1.0]hexan-1-ols, I (R = Me, iPr, iBu, sec-Bu, Ph) as mixts. of diastereomers that are separable by silica-gel chroma...
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