The Experts below are selected from a list of 105 Experts worldwide ranked by ideXlab platform
Xuesen Fan - One of the best experts on this subject based on the ideXlab platform.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
ChemInform, 2014Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:It is found that treatment of benzaldehydes of type (I) and (V) with 0.7 equivalents of Jones oxidant followed by column chromatography on silica gel pre-eluted with NEt3 results in efficient formation of 3-acyl-2-naphthols.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
Journal of Organic Chemistry, 2013Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:Novel and efficient synthesis of 3-acyl-2-naphthols and 3-substituted isocoumarins via the tunable cascade reactions of 2-(4-hydroxy-but-1-ynyl)benzaldehydes have been developed. Treatment of 2-(4-hydroxy-but-1-ynyl)benzaldehydes with 0.7 equiv of Jones Reagent in CH3CN and subsequent purification through column chromatography on silica gel pre-eluted with Et3N afforded 3-acyl-2-naphthols with high efficiency. When the same substrates were treated with 3 equiv of Jones Reagents in acetone, on the other hand, 3-substituted isocoumarins could be obtained in good yields.
Xinying Zhang - One of the best experts on this subject based on the ideXlab platform.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
ChemInform, 2014Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:It is found that treatment of benzaldehydes of type (I) and (V) with 0.7 equivalents of Jones oxidant followed by column chromatography on silica gel pre-eluted with NEt3 results in efficient formation of 3-acyl-2-naphthols.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
Journal of Organic Chemistry, 2013Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:Novel and efficient synthesis of 3-acyl-2-naphthols and 3-substituted isocoumarins via the tunable cascade reactions of 2-(4-hydroxy-but-1-ynyl)benzaldehydes have been developed. Treatment of 2-(4-hydroxy-but-1-ynyl)benzaldehydes with 0.7 equiv of Jones Reagent in CH3CN and subsequent purification through column chromatography on silica gel pre-eluted with Et3N afforded 3-acyl-2-naphthols with high efficiency. When the same substrates were treated with 3 equiv of Jones Reagents in acetone, on the other hand, 3-substituted isocoumarins could be obtained in good yields.
Nana Shen - One of the best experts on this subject based on the ideXlab platform.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
ChemInform, 2014Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:It is found that treatment of benzaldehydes of type (I) and (V) with 0.7 equivalents of Jones oxidant followed by column chromatography on silica gel pre-eluted with NEt3 results in efficient formation of 3-acyl-2-naphthols.
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tunable synthesis of 3 acyl 2 naphthols and 3 substituted isocoumarins via Jones Reagent promoted cascade reactions of 2 4 hydroxy but 1 ynyl benzaldehydes
Journal of Organic Chemistry, 2013Co-Authors: Xinying Zhang, Nana Shen, Xuesen FanAbstract:Novel and efficient synthesis of 3-acyl-2-naphthols and 3-substituted isocoumarins via the tunable cascade reactions of 2-(4-hydroxy-but-1-ynyl)benzaldehydes have been developed. Treatment of 2-(4-hydroxy-but-1-ynyl)benzaldehydes with 0.7 equiv of Jones Reagent in CH3CN and subsequent purification through column chromatography on silica gel pre-eluted with Et3N afforded 3-acyl-2-naphthols with high efficiency. When the same substrates were treated with 3 equiv of Jones Reagents in acetone, on the other hand, 3-substituted isocoumarins could be obtained in good yields.
Candace J Wiggin - One of the best experts on this subject based on the ideXlab platform.
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silica gel supported Jones Reagent sjr a simple versatile and efficient Reagent for oxidation of alcohols in non aqueous media
ChemInform, 2002Co-Authors: Mohammed Hashmat Ali, Candace J WigginAbstract:Oxidation of alcohols to carbonyl compounds has been carried out by utilization of Jones Reagent supported on silica gel (SJR). The SJR procedure has advantages over traditional Jones oxidation procedure. This procedure is safer to carry out and simplified workup by allowing organic media.
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silica gel supported Jones Reagent sjr a simple and efficient Reagent for oxidation of benzyl alcohols to benzaldehydes
ChemInform, 2001Co-Authors: Mohammed Hashmat Ali, Candace J WigginAbstract:Jones Reagent supported on silica gel (SJR) has been used for oxidation of benzyl alcohols to the corresponding benzaldehydes in high yields utilizing organic solvent. This newly developed Reagent is easy to prepare and use. SJR is also safer than the traditional Jones Reagent.
Kafka Stanislav - One of the best experts on this subject based on the ideXlab platform.
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Preparation of quinoline-2,4-dione functionalized 1,2,3-triazol-4-ylmethanols, 1,2,3-triazole-4-carbaldehydes and 1,2,3-triazole-4-carboxylic acids
Slovensko Kemijsko Drustvo, 2020Co-Authors: Milićević David, Kimmel Roman, Urankar Damijana, Pevec Andrej, Kosmrlj Janez, Kafka StanislavAbstract:(1-(2,4-Dioxo-1,2,3,4-tetrahydroquinolin-3-yl)-1H-1,2,3-triazol-4-yl)methyl acetates substituted on nitrogen atom of quinolinedione moiety with propargyl group or (1-substituted 1H-1,2,3-triazol-4-yl)methyl group, which are available from the appropriate 3-(4-hydroxymethyl-1H-1,2,3-triazol-1-yl)quinoline-2,4(1H,3H)-diones unsubstituted on quinolone nitrogen atom by the previously described procedures, were deacetylated by acidic ethanolysis. Thus obtained primary alcohols, as well as those aforenamed unsubstituted on quinolone nitrogen atom, were oxidized to aldehydes on the one hand with pyridinium chlorochromate (PCC), on the other hand with manganese dioxide, and to carboxylic acids using Jones Reagent in acetone. The structures of all prepared compounds were confirmed by H-1, C-13 and N-15 NMR spectroscopy. The corresponding resonances were assigned on the basis of the standard 1D and gradient selected 2D NMR experiments (H-1-H-1 gs-COSY, H-1-C-13 gs-HSQC, H-1-C-13 gs-HMBC) with H-1-N-15 gs-HMBC as a practical tool to determine N-15 NMR chemical shifts at the natural abundance level of N-15 isotope.TBU in Zlin [IGA/FT/2019/010]; Slovenian Research AgencySlovenian Research Agency - Slovenia [P1-0230, J1-8147, J1-9166
