Pascal and Francis Bibliographic Databases

Help

Search results

Your search

kw.\*:("Heterociclo oxígeno")

Filter

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Document Type [dt]

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Publication Year[py]

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Discipline (document) [di]

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Language

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Author Country

A-Z Z-A Frequency ↓ Frequency ↑
Export in CSV

Results 1 to 25 of 32284

  • Page / 1292
Export

Selection :

  • and

Isolation of a 1:1 oxazole-benzyne cycloadduct: an improved method for generating benzyne and a new approach to isobenzofuranWHITNEY, S. E; RICKBORN, B.Journal of organic chemistry. 1988, Vol 53, Num 23, pp 5595-5596, issn 0022-3263Article

Acid-catalyzed cyclization reactions of substituted acetylenic ketones: a new approach for the synthesis of 3-halofurans, flavones, and styrylchromonesOBRECHT, D.Helvetica chimica acta. 1989, Vol 72, Num 3, pp 447-456, issn 0018-019X, 10 p.Article

Oxidation by singlet oxygen of 4,7-dimethoxy-2,9-di-t-butyloxepino-[2,3-b]benzofuran, an oxidation product of the antioxidant BHABYRNE, L. T; ENGELHARDT, L. M; HEWGILL, F. R et al.Journal of the Chemical Society. Perkin transactions. I. 1989, Num 1, pp 133-142, issn 0300-922X, 10 p.Article

Synthesis and conformational analysis of 2-methylthioderivatives of 1-(2'-furyl)ethanol and their O-methyl derivativesALCUDIA, F; FERNANDEZ, I; TRUJILLO, M et al.Tetrahedron (Oxford. Print). 1989, Vol 45, Num 5, pp 1491-1500, issn 0040-4020, 10 p.Article

Synthesis and photochemical reaction of a stable isobenzofuran derivativeMIKI, S; YOSHIDA, M; YOSHIDA, Z et al.Tetrahedron letters. 1989, Vol 30, Num 1, pp 103-104, issn 0040-4039, 2 p.Article

Synthesis of podophyllotoxinJONES, D. W; THOMPSON, A. M.Journal of the Chemical Society. Chemical communications. 1989, Num 18, pp 1370-1371, issn 0022-4936, 2 p.Article

Synthesis of pyranoisoflavones from pyronochalcones: synthesis of elongatin and its angular isomerTSUKAYAMA, M; KAWAMURA, Y; TAMAKI, H et al.Bulletin of the Chemical Society of Japan. 1989, Vol 62, Num 3, pp 826-832, issn 0009-2673, 7 p.Article

Synthesis of some new phenyl 2H-1-benzopyran-2-ones: novel structure for niveginPARMAR, V. S; SUDDHAM SINGH; ANAND VARDHAN et al.Tetrahedron (Oxford. Print). 1989, Vol 45, Num 6, pp 1839-1844, issn 0040-4020, 6 p.Article

Effects of 8-phenyl and 8-cycloalkyl substituents on the activity of mono-, di-, and trisubstituted alkylxanthines with substitution at the 1-, 3-, and 7-positionsSHAMIM, M. T; UKENA, D; PADGETT, W. L et al.Journal of medicinal chemistry (Print). 1989, Vol 32, Num 6, pp 1231-1237, issn 0022-2623, 7 p.Article

A convenient synthesis of cyclic ethers from siloxy carbonyl compoundsHOMMA, K; MUKAIYAMA, T.Chemistry Letters. 1989, Num 2, pp 259-262, issn 0366-7022, 4 p.Article

Chemistry of insect antifeedants from azadirachta indica. IV: Synthesis towards the limonoid azadirachtin; preparation of a functionalised decalin fragmentLEY, S. V; ABAD SOMOVILLA, A; BROUGHTON, H. B et al.Tetrahedron (Oxford. Print). 1989, Vol 45, Num 7, pp 2143-2164, issn 0040-4020, 22 p.Article

Synthesis and reaction of 1,2,4-trioxanesFUJISAKA, T; MIURA, M; NOJIMA, M et al.Journal of the Chemical Society. Perkin transactions. I. 1989, Num 5, pp 1031-1039, issn 0300-922X, 9 p.Article

The synthesis of an oxygen-bridged hydroxy[15]annulenone: the effects of introducing one hydroxy group into the flexible segment of a 14π perimeterOGAWA, H; INOUE, M; IMOTO, T et al.Journal of the Chemical Society. Chemical communications. 1989, Num 2, pp 120-121, issn 0022-4936, 2 p.Article

A new synthesis of rosefuranTSUKASA, H.Agricultural and biological chemistry. 1989, Vol 53, Num 11, pp 3091-3092, issn 0002-1369, 2 p.Article

Formation of furan derivatives from phenacyl bromides and sodium telluride; attempted extension to coumarin synthesisPADMANABHAN, S; OGAWA, T; SUZUKI, H et al.Bulletin of the Chemical Society of Japan. 1989, Vol 62, Num 6, pp 2114-2116, issn 0009-2673, 3 p.Article

Photoreaction of 1-aryl 1,3-diketones. Trapping reaction of the biradicals generated in the type II reaction with oxygenYOSHIOKA, M; FUNAYAMA, K; HASEGAWA, T et al.Journal of the Chemical Society. Perkin transactions. I. 1989, Num 8, pp 1411-1414, issn 0300-922X, 4 p.Article

Changing the size of a cavity via an electron-transfer: synthesis and reduction of 1,5,22,26-tetraoxa-[5,5]-(2,8)-dibenzo[a,e]cyclooctatetraenophaneHEINZ, W; RADER, H.-J; MULLEN, K et al.Tetrahedron letters. 1989, Vol 30, Num 2, pp 159-162, issn 0040-4039, 4 p.Article

Efficient chiral synthesis of Melillo's lactone, a key intermediate for the synthesis of thienamycinKAMETANI, T; HONDA, T; ISHIZONE, H et al.Journal of the Chemical Society. Chemical communications. 1989, Num 10, pp 646-647, issn 0022-4936, 2 p.Article

Heterocycles by cycloaddition. VIII: Preparation of [1]benzopyrano[4,3-b]pyrroles by intramolecular cycloaddition-extrusion of mesoionic oxazolium-5-olatesKATO, H; SHU-ZHONG WANG; NAKANO, H et al.Journal of the Chemical Society. Perkin transactions. I. 1989, Num 2, pp 361-363, issn 0300-922X, 3 p.Article

Highly enantiospecific synthesis of 4-alkyl and 4,5-dialkyl substituted 4,5-dihydrofuran-2(3H)-ones from optically active (E)- and (Z)-alk-1-enyl p-tolyl sulphoxides: application to the synthesis of lignan lactonesKOSUGI, H; TAGAMI, K; TAKAHASHI, A et al.Journal of the Chemical Society. Perkin transactions. I. 1989, Num 5, pp 935-943, issn 0300-922X, 9 p.Article

Intramolecular ene reaction of unsaturated thioketonesMOTOKI, S; WATANABE, T; SAITO, T et al.Tetrahedron letters. 1989, Vol 30, Num 2, pp 189-192, issn 0040-4039, 4 p.Article

On the formation of isopropylidenepyridoxines. A convenient method for the preparation of 2,2,8-trimethyl-4H-1,3-dioxino[4,5-c]pyridin-5-ylmethanol from pyridoxine hydrochlorideYIKANG WU; AHLBERG, P.Acta chemica scandinavica (1989). 1989, Vol 43, Num 10, pp 1009-1011, 3 p.Article

Synthetic studuy on breynin A: synthesis of brenolide sulfoneNISHIYAMA, S; IKEDA, Y; YOSHIDA, S et al.Tetrahedron letters. 1989, Vol 30, Num 1, pp 105-108, issn 0040-4039, 4 p.Article

Derivatives of α,α,α',α'-tetraaryl-2,2-dimethyl-1,3-dioxolan-4,5-dimethanol (TADDOL) containing nitrogen, sulfur, and phosphorus atoms. New ligands and auxiliaries for enantioselective reactionsSEEBACH, D; HAYAKAWA, M; SAKAKI, J.-I et al.Tetrahedron (Oxford. Print). 1993, Vol 49, Num 9, pp 1711-1724, issn 0040-4020Article

Acyl anion equivalents in the synthesis of 2H-pyran-2-ones: an efficient synthesis of anibineDHAVALE, D. D; INDRAPAL SINGH AIDHEN; SHAFIQUE, M et al.Journal of organic chemistry. 1989, Vol 54, Num 16, pp 3985-3987, issn 0022-3263, 3 p.Article

  • Page / 1292