The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform
Masao Tokuda - One of the best experts on this subject based on the ideXlab platform.
-
Facile preparation of highly reactive electrogenerated zinc
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Shingo Takasugi, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution containing naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Nagh was elucidated by an efficient transformation of ethyl 2-bromobutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10 C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing this EGZn/Naph.
-
Determination of optimum conditions in preparing highly reactive electrogenerated zinc by gas chromatograph
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution cotaining naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Naph elucidated by an efficient transformation of ethyl 2-bromolbutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing of the EGZn/Naph.
Aishah Abdul Jalil - One of the best experts on this subject based on the ideXlab platform.
-
Facile preparation of highly reactive electrogenerated zinc
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Shingo Takasugi, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution containing naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Nagh was elucidated by an efficient transformation of ethyl 2-bromobutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10 C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing this EGZn/Naph.
-
Determination of optimum conditions in preparing highly reactive electrogenerated zinc by gas chromatograph
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution cotaining naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Naph elucidated by an efficient transformation of ethyl 2-bromolbutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing of the EGZn/Naph.
Hiroyuki Nohira - One of the best experts on this subject based on the ideXlab platform.
-
Ring-Opening Polymerization of 3,3,3-Trifluoro-1,2-epoxypropane. Studies on Monomer Reactivity and Polymer Structure
Polymer Journal, 1994Co-Authors: Junko Umezawa, Tokio Hagiwara, Hiroshi Hamana, Tadashi Narita, Keizo Furuhashi, Hiroyuki NohiraAbstract:The polymerization reaction of 3,3,3-trifluoro-1,2-epoxypropane (TFEP) with Et_2Zn-H_2O or potassium hydroxide was investigated. The ring-cleavage reaction of TFEP occurs only at the β(CH_2–O)-position to give regioregular, head-to-tail poly(TFEP). The ^13C NMR and ^19F NMR spectra of the polymer give information on the dyad tacticity of the polymer main chain. It is suggested that the Organozinc Compound is a stereospecific catalyst and potassium hydroxide is a non-stereospecific one for the polymerization of TFEP.
Jean Martinez - One of the best experts on this subject based on the ideXlab platform.
-
New C-Glycosylated α-Amino Acid Synthesis by Addition Reaction of an Amino Acid Organozinc Reagent on Carbohydrate-Derived Aldehydes.
ChemInform, 2012Co-Authors: Nicolas Boutard, Frédéric Labéguère, Y. Vidal, Jean-pierre Lavergne, Jean MartinezAbstract:A protocol for the Lewis acid mediated addition of the new amino acid Organozinc Compound (VI) to simple aldehydes is developed and successfully applied to the synthesis of novel C-glycosylated amino acids such as (X).
Nobuhita Kurono - One of the best experts on this subject based on the ideXlab platform.
-
Facile preparation of highly reactive electrogenerated zinc
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Shingo Takasugi, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution containing naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Nagh was elucidated by an efficient transformation of ethyl 2-bromobutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10 C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing this EGZn/Naph.
-
Determination of optimum conditions in preparing highly reactive electrogenerated zinc by gas chromatograph
2020Co-Authors: Aishah Abdul Jalil, Nobuhita Kurono, Masao TokudaAbstract:Highly reactive electrogenerated zinc metal (EGZn/Naph) was readily prepared by electrolysis of a DMF solution cotaining naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. The reactivity of this EGZn/Naph elucidated by an efficient transformation of ethyl 2-bromolbutanoate as a model substrate into the corresponding Organozinc Compound, which can not be achieved by the use of usual zinc metal. It was found that the electrolysis at -10C at a constant current of 60 mA/cm2 under nitrogen atmosphere was the optimum conditions in preparing of the EGZn/Naph.