Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Eung K. Ryu"'
Publikováno v:
Journal of Heterocyclic Chemistry. 37:75-78
3-Aryl-4-methoxycarbonylisoxazoles were prepared from the reaction of a variety of substituted benzonitrile oxides with methyl 3-(p-nitrobenzoyloxy)acrylate in moderate to good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44d3593e9f412d3df4d16a72f212b92
https://doi.org/10.1002/jhet.5570370112
https://doi.org/10.1002/jhet.5570370112
Publikováno v:
Synthetic Communications. 29:3303-3311
Friedel-Crafts type reactions of phenol derivatives with some cyclic ketones such as ninhydrin (1), alloxan (2), isatin (3), and parabanic acid (4) were examined. 2-Monoaryl- and 2,2-diaryl-1,3-indanedione derivatives were obtained depending on the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7415da7c2cfafae14fe99fe6d44a6737
https://doi.org/10.1080/00397919908085958
https://doi.org/10.1080/00397919908085958
Publikováno v:
Synthetic Communications. 28:139-145
The reaction of Grignard or organolithium reagents with the Weinreb amide of 3,7-dichloroquinoline-8-carboxylic acid afforded 2-substituted derivatives 5 via nucleophilic substitution reaction with hydride transfer as the major product instead of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54374379bc256bb1642fb2450ec20a4f
https://doi.org/10.1080/00397919808005083
https://doi.org/10.1080/00397919808005083
Publikováno v:
Synthetic Communications. 28:159-165
Various alkenes underwent 1,2-acetoxychlorination by N,N-dimethylacetamide (DMA)/HCl/m-CPBA (or Oxone) system in good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b561f0d591da8e9ecf16bca921d317aa
https://doi.org/10.1080/00397919808005085
https://doi.org/10.1080/00397919808005085
Publikováno v:
Synthetic Communications. 27:3477-3484
Dihydroisoxazolopyrimidine derivatives could be cleaved to form either pyrimidine ring or isoxazole ring derivatives depending upon the reaction conditions employed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d31f19b3f2194fa82387c519724be73
https://doi.org/10.1080/00397919708005650
https://doi.org/10.1080/00397919708005650
Autor:
Eung K. Ryu, Kyoung Mahn Kim
Publikováno v:
Tetrahedron Letters. 37:1441-1444
γ,γ-Dimethyl-γ-butyrolactones were exclusively obtained from γ-methyl-γ,δ-pentenoic acids with a catalytic amount of iodine in good yields in methylene chloride.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa3e71d9203307a569a1399ead62c5e
https://doi.org/10.1016/0040-4039(96)00026-3
https://doi.org/10.1016/0040-4039(96)00026-3
Autor:
Eung K. Ryu, Jae Nyoung Kim
Publikováno v:
Synthetic Communications. 26:67-74
Herbicidal 2,3-dihydro-3-methylene-2-substitutedphenyl-1 H-isoindol-1-one derivatives 7 have been synthesized. They were prepared from the easily available phenol derivatives 1 in 5 steps in moderate yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b224230d0f7f77ee69753d4e921935
https://doi.org/10.1080/00397919608003863
https://doi.org/10.1080/00397919608003863
Publikováno v:
Synthetic Communications. 25:1711-1715
The reaction of primary nitroalkanes with aromatic compounds in the presence of aluminium chloride afforded the corresponding carbohydroximoylated aromatic compounds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6bbb7cefb3c3d1cd00f1c7f22e4dfa8
https://doi.org/10.1080/00397919508015855
https://doi.org/10.1080/00397919508015855
Publikováno v:
Synthetic Communications. 25:1801-1807
One pot 1,3-dipolar cycloadditions of 2,6-dichlorobenzonitrile oxide with various allylic alcohols prepared in situ from α, β-unsaturated aldehydes and ketones with Grignard reagents exhibited good regioselectivities and diastereoselectivities, app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8faa9afba1aa64559e79599146200ff
https://doi.org/10.1080/00397919508015423
https://doi.org/10.1080/00397919508015423
Publikováno v:
Synthetic Communications. 24:3065-3071
The alkylation and sulfonylation of 3-aryl-1-methyl-1,2,4-triazolin-5-ones (1) were studied with various alkyl halides and sulfonyl chlorides. The alkylation of 1 with methyl iodide and ethyl bromide afforded N-alkylated products, however with methyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6137db0724b834f954e871b763d00a70
https://doi.org/10.1080/00397919408011319
https://doi.org/10.1080/00397919408011319