- Syntheses, Structural Studies, and Copper Iodide Complexes of Macrocycles Derived from Williamson Ether Syntheses Involving 2,9-Bis(4-hydroxyphenyl)-1,10-phenanthroline, α,ω-Dibromides, and Resorcinol or 2,7-Dihydroxynaphthalene
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1,3-Bis(6-bromohexyloxy)benzene, 2,7-bis(6-bromohexyloxy)naphthalene, 1,3-bis(4-bromomethylbenzyloxy)benzene, and 1,3-bis(3-bromomethylbenzyloxy)benzene were prepared via Williamson ether synthesis using resorcinol or 2,7-dihydroxynaphthalene and 1,6-dibr
- Baranová, Zuzana,Amini, Hashem,Neupane, Madhav,Garrett, Sydney C.,Ehnbom, Andreas,Bhuvanesh, Nattamai,Reibenspies, Joseph H.,Gladysz, John A.
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Read Online
- Synthesis, structure and catalytic activity of macrocyclic NHC PD pincer complexes
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We synthesized a series of new N-heterocyclic carbene (NHC) macrocyclic Pd pincer complexes (17-22) by the reaction of Pd(OAc)2 or Pd2(dba)3 with the corresponding macrocycles, which were prepared by the coupling reaction of dibromides with bisimidazoles. The complex adopted twisted conformation, and the activation energy of the conformational interconversion of the macrocycle was determined by VT-NMR. We also examined the catalytic activity of these Pd complexes in Mizoroki-Heck and oxidative alkynyl-alkynyl homocoupling reactions.
- Watarai, Noriaki,Kawasaki, Hiroyasu,Azumaya, Isao,Yamasaki, Ryu,Saito, Shinichi
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experimental part
p. 531 - 548
(2009/12/07)
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- Template synthesis of [2]rotaxanes with large ring components and tris(biphenyl)methyl group as the blocking group. The relationship between the ring size and the stability of the rotaxanes
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We synthesized a series of macrocyclic phenanthrolines 3a-e and a tris(biphenyl)methyl derivative 4. [2]Rotaxanes with large ring components (10a,b) were synthesized by the template method, and the stability of the rotaxanes was examined. The study reveal
- Saito, Shinichi,Nakazono, Kazuko,Takahashi, Eiko
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p. 7477 - 7480
(2007/10/03)
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- Syntheses, X-ray structures and conformational studies of tetraoxa[n.n]metacyclophanes
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New types of macrocyclic ligands with tetraoxa[n.n]metacyclophane molecular skeletons have been synthesized. The structures of 14,28-dibromo-1,8,15,22-tetraoxa[8.8]metacyclophane 2a, 16,32-dibromo-1,10,17,26-tetraoxa[10.10]metacyclophane 2b, 14,28-dibromo
- Ogawa, Takuji,Kishimoto, Tomoaki,Kobayashi, Keijiro,Ono, Noboru
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p. 529 - 538
(2007/10/03)
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