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Synthesis of 3-hydroxypyridines using ruthenium-catalyzed ring-closing olefin metathesis.
- Kazuhiro Yoshida, Fumihiro Kawagoe, K. Hayashi, Shingo Horiuchi, T. Imamoto, A. Yanagisawa
- Chemistry, Medicine
- Organic letters
- 5 February 2009
New synthetic routes to substituted 3-hydroxypyridines 6 are presented. Ring-closing olefin metathesis (RCM)/elimination and RCM/oxidation/deprotection of nitrogen-containing dienes 4 are the key… Expand
Construction of carbocyclic ring of indoles using ruthenium-catalyzed ring-closing olefin metathesis.
The selective synthesis of substituted indoles was achieved by the ring-closing olefin metathesis (RCM)/elimination sequence or the RCM/tautomerization sequence of functionalized pyrrole precursors.… Expand
Synthesis of 4-vinylindoles using ruthenium-catalyzed ring-closing enyne metathesis.
- K. Hayashi, Kazuhiro Yoshida, A. Yanagisawa
- Chemistry, Medicine
- The Journal of organic chemistry
- 27 February 2013
The selective synthesis of substituted 4-vinylindoles by the ring-closing enyne metathesis (RCEM)/dehydration sequence is reported. In contrast with many known methods in which a pyrrole ring is… Expand
Enantioselective Diels–Alder Reaction Induced by Chiral Supramolecular Lewis Acid Catalysts Based on CN···B and PO···B Coordination Bonds
Chiral supramolecular boron Lewis acid catalysts were prepared from chiral 3-phosphoryl-1,1′-bi-2-naphthols, (2-cyanophenyl)boronic acids, and tris(pentafluorophenyl)borane, bound through CN···B and… Expand
Synthesis of 3‐Hydroxypyridines Using Ruthenium‐Catalyzed Ring‐Closing Olefin Metathesis.
Sub-100W phase conjugate pico-second Nd:YVO4 laser system based on a tandem bounce amplifier
- M. Ashihara, K. Hayashi, T. Yoshino, M. Okida, K. Miyamoto, T. Omatsu
- Conference on Lasers and Electro-Optics Europe…
- 22 May 2011
High power pico-second lasers have been intensely investigated in several fields, such as non-linear optics, laser ablation, and micro-fabrication. A side-pumped Nd:YVO4 bounce amplifier, showing an… Expand
Construction of Carbocyclic Ring of Indoles Using Ruthenium-Catalyzed Ring-Closing Olefin Metathesis.
The new selective method to prepare various functionalized indoles can also be applied to synthesize carbazole derivatives.
Synthesis of 4‐Vinylindoles Using Ruthenium‐Catalyzed Ring‐Closing Enyne Metathesis.
Enantioselective Diels—Alder Reaction Induced by Chiral Supramolecular Lewis Acid Catalysts Based on CN···B and PO···B Coordination Bonds.