The Experts below are selected from a list of 3 Experts worldwide ranked by ideXlab platform
Tetsutaro Hattori - One of the best experts on this subject based on the ideXlab platform.
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ullmann coupling reaction of 1 3 bistriflate esters of calix 4 arenes facile syntheses of monoaminocalix 4 arenes and 4 4 6 6 diepithiobis phenoxathiine
Tetrahedron Letters, 2007Co-Authors: Shinya Tanaka, Ryuichi Serizawa, Naoya Morohashi, Tetsutaro HattoriAbstract:Abstract Treatment of 1,3-bistriflate esters of thiacalix- ( 6a ) and calix[4]arenes 6b with benzylamine in the presence of CuI and K 3 PO 4 results in the displacement of a TfO moiety with a benzylamino group, which provides an easy access to monoaminothiacalix[4]arene 4a and its methylene-bridged counterpart 4b . On the other hand, the reaction of 6a in the absence of benzylamine leads to intramolecular dietherification, giving 4,4′:6,6′-diepithiobis(phenoxathiine) 7a .
Shinya Tanaka - One of the best experts on this subject based on the ideXlab platform.
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ullmann coupling reaction of 1 3 bistriflate esters of calix 4 arenes facile syntheses of monoaminocalix 4 arenes and 4 4 6 6 diepithiobis phenoxathiine
Tetrahedron Letters, 2007Co-Authors: Shinya Tanaka, Ryuichi Serizawa, Naoya Morohashi, Tetsutaro HattoriAbstract:Abstract Treatment of 1,3-bistriflate esters of thiacalix- ( 6a ) and calix[4]arenes 6b with benzylamine in the presence of CuI and K 3 PO 4 results in the displacement of a TfO moiety with a benzylamino group, which provides an easy access to monoaminothiacalix[4]arene 4a and its methylene-bridged counterpart 4b . On the other hand, the reaction of 6a in the absence of benzylamine leads to intramolecular dietherification, giving 4,4′:6,6′-diepithiobis(phenoxathiine) 7a .
Ryuichi Serizawa - One of the best experts on this subject based on the ideXlab platform.
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ullmann coupling reaction of 1 3 bistriflate esters of calix 4 arenes facile syntheses of monoaminocalix 4 arenes and 4 4 6 6 diepithiobis phenoxathiine
Tetrahedron Letters, 2007Co-Authors: Shinya Tanaka, Ryuichi Serizawa, Naoya Morohashi, Tetsutaro HattoriAbstract:Abstract Treatment of 1,3-bistriflate esters of thiacalix- ( 6a ) and calix[4]arenes 6b with benzylamine in the presence of CuI and K 3 PO 4 results in the displacement of a TfO moiety with a benzylamino group, which provides an easy access to monoaminothiacalix[4]arene 4a and its methylene-bridged counterpart 4b . On the other hand, the reaction of 6a in the absence of benzylamine leads to intramolecular dietherification, giving 4,4′:6,6′-diepithiobis(phenoxathiine) 7a .
Naoya Morohashi - One of the best experts on this subject based on the ideXlab platform.
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ullmann coupling reaction of 1 3 bistriflate esters of calix 4 arenes facile syntheses of monoaminocalix 4 arenes and 4 4 6 6 diepithiobis phenoxathiine
Tetrahedron Letters, 2007Co-Authors: Shinya Tanaka, Ryuichi Serizawa, Naoya Morohashi, Tetsutaro HattoriAbstract:Abstract Treatment of 1,3-bistriflate esters of thiacalix- ( 6a ) and calix[4]arenes 6b with benzylamine in the presence of CuI and K 3 PO 4 results in the displacement of a TfO moiety with a benzylamino group, which provides an easy access to monoaminothiacalix[4]arene 4a and its methylene-bridged counterpart 4b . On the other hand, the reaction of 6a in the absence of benzylamine leads to intramolecular dietherification, giving 4,4′:6,6′-diepithiobis(phenoxathiine) 7a .