The Experts below are selected from a list of 173838 Experts worldwide ranked by ideXlab platform
Takeaki Naito - One of the best experts on this subject based on the ideXlab platform.
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indium as a radical initiator in aqueous media intermolecular alkyl radical addition to cn and cc bond
Tetrahedron, 2004Co-Authors: Hideto Miyabe, Masafumi Ueda, Azusa Nishimura, Takeaki NaitoAbstract:Abstract The carbon–carbon bond-Forming Method in aqueous media was investigated by using indium as a single-electron transfer radical initiator. The indium-mediated intermolecular alkyl radical addition to imine derivatives and electron-deficient CC bond proceeded effectively.
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indium mediated intermolecular alkyl radical addition to electron deficient c double bond n bond and c double bond c bond in water
Organic Letters, 2002Co-Authors: Hideto Miyabe, Masafumi Ueda, And Azusa Nishimura, Takeaki NaitoAbstract:[reaction: see text] The intermolecular alkyl radical addition to imine derivatives was studied in aqueous media by using indium as a single-electron-transfer radical initiator. The one-pot reaction based on radical addition to glyoxylic hydrazone provided a convenient Method for preparing the alpha-amino acids. The indium-mediated radical addition to an electron-deficient C=C bond also proceeded effectively to provide the new carbon-carbon bond-Forming Method in aqueous media.
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carboncarbon bond formation via intermolecular carbon radical addition to aldoxime ethers
Tetrahedron Letters, 1998Co-Authors: Hideto Miyabe, Ryouhei Shibata, Chikage Ushiro, Takeaki NaitoAbstract:Abstract The first example of intermolecular carbon radical addition to unactivated aldoxime ethers in the presence of BF 3 ·OEt 2 has provided a new efficient carboncarbon bond-Forming Method for the synthesis of a variety of amines.
Hideto Miyabe - One of the best experts on this subject based on the ideXlab platform.
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indium as a radical initiator in aqueous media intermolecular alkyl radical addition to cn and cc bond
Tetrahedron, 2004Co-Authors: Hideto Miyabe, Masafumi Ueda, Azusa Nishimura, Takeaki NaitoAbstract:Abstract The carbon–carbon bond-Forming Method in aqueous media was investigated by using indium as a single-electron transfer radical initiator. The indium-mediated intermolecular alkyl radical addition to imine derivatives and electron-deficient CC bond proceeded effectively.
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indium mediated intermolecular alkyl radical addition to electron deficient c double bond n bond and c double bond c bond in water
Organic Letters, 2002Co-Authors: Hideto Miyabe, Masafumi Ueda, And Azusa Nishimura, Takeaki NaitoAbstract:[reaction: see text] The intermolecular alkyl radical addition to imine derivatives was studied in aqueous media by using indium as a single-electron-transfer radical initiator. The one-pot reaction based on radical addition to glyoxylic hydrazone provided a convenient Method for preparing the alpha-amino acids. The indium-mediated radical addition to an electron-deficient C=C bond also proceeded effectively to provide the new carbon-carbon bond-Forming Method in aqueous media.
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carboncarbon bond formation via intermolecular carbon radical addition to aldoxime ethers
Tetrahedron Letters, 1998Co-Authors: Hideto Miyabe, Ryouhei Shibata, Chikage Ushiro, Takeaki NaitoAbstract:Abstract The first example of intermolecular carbon radical addition to unactivated aldoxime ethers in the presence of BF 3 ·OEt 2 has provided a new efficient carboncarbon bond-Forming Method for the synthesis of a variety of amines.
D Y Yang - One of the best experts on this subject based on the ideXlab platform.
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An incremental roll Forming process for manufacturing doubly curved sheets from general quadrilateral sheet blanks with enhanced process features
CIRP Annals - Manufacturing Technology, 2005Co-Authors: S J Yoon, D Y YangAbstract:In order to manufacture a doubly curved sheet metal effectively, a flexible incremental roll Forming process has been developed by adopting the advantages of the incremental Forming process and the roll Forming process by combining inherent flexibility of the incremental Forming process and continuous deformation of the roll Forming process. In the proposed roll Forming system, a newly designed gripper system is attached in order to achieve automation and more precision manufacturing of the required sheet intended double curvature. The Forming Method has been further enhanced to form general quadrilateral blanks (including a square, a rectangle, a symmetrical trapezoid and an asymmetrical trapezoid, etc.) into doubly curved shapes by controlling the Forming schedule developed by various experiments.
S J Yoon - One of the best experts on this subject based on the ideXlab platform.
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An incremental roll Forming process for manufacturing doubly curved sheets from general quadrilateral sheet blanks with enhanced process features
CIRP Annals - Manufacturing Technology, 2005Co-Authors: S J Yoon, D Y YangAbstract:In order to manufacture a doubly curved sheet metal effectively, a flexible incremental roll Forming process has been developed by adopting the advantages of the incremental Forming process and the roll Forming process by combining inherent flexibility of the incremental Forming process and continuous deformation of the roll Forming process. In the proposed roll Forming system, a newly designed gripper system is attached in order to achieve automation and more precision manufacturing of the required sheet intended double curvature. The Forming Method has been further enhanced to form general quadrilateral blanks (including a square, a rectangle, a symmetrical trapezoid and an asymmetrical trapezoid, etc.) into doubly curved shapes by controlling the Forming schedule developed by various experiments.
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development of a highly flexible incremental roll Forming process for the manufacture of a doubly curved sheet metal
CIRP Annals, 2003Co-Authors: S J Yoon, Dongyol YangAbstract:Abstract A flexible incremental roll Forming process has been developed by adopting the advantages of the incremental Forming process and the roll Forming process: i.e., inherent flexibility of the incremental Forming process and continuous bending deformation of the roll Forming process. It has an adjustable roll set as a Forming tool composed of one upper center roll and two pairs of lower support rolls, which plays a key role. Through the experiments, it is shown that the improved Forming Method of the proposed process is effective in the manufacture of various doubly curved sheet metals, and the proposed relationship of the experimental parameters and the radius of curvature of the formed sheet boundary is useful to control the final shape
Masafumi Ueda - One of the best experts on this subject based on the ideXlab platform.
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indium as a radical initiator in aqueous media intermolecular alkyl radical addition to cn and cc bond
Tetrahedron, 2004Co-Authors: Hideto Miyabe, Masafumi Ueda, Azusa Nishimura, Takeaki NaitoAbstract:Abstract The carbon–carbon bond-Forming Method in aqueous media was investigated by using indium as a single-electron transfer radical initiator. The indium-mediated intermolecular alkyl radical addition to imine derivatives and electron-deficient CC bond proceeded effectively.
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indium mediated intermolecular alkyl radical addition to electron deficient c double bond n bond and c double bond c bond in water
Organic Letters, 2002Co-Authors: Hideto Miyabe, Masafumi Ueda, And Azusa Nishimura, Takeaki NaitoAbstract:[reaction: see text] The intermolecular alkyl radical addition to imine derivatives was studied in aqueous media by using indium as a single-electron-transfer radical initiator. The one-pot reaction based on radical addition to glyoxylic hydrazone provided a convenient Method for preparing the alpha-amino acids. The indium-mediated radical addition to an electron-deficient C=C bond also proceeded effectively to provide the new carbon-carbon bond-Forming Method in aqueous media.