Rhodium-catalyzed complete regioselective intermolecular cross-cyclotrimerization of aryl ethynyl ethers and nitriles or isocyanates at room temperature.
We have established that a cationic rhodium(I)/H(8)-BINAP complex catalyzes the complete regioselective intermolecular cross-cyclotrimerization of aryl ethynyl ethers and nitriles or isocyanates leading to 2,4-diaryloxypyridines or 4,6-diaryloxy-2-pyridones at room temperature.
Komine
Yoshiyuki
Y
Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
Tanaka
Ken
K
D002384:Catalysis; D003500:Cyclization; D004987:Ethers / Q000737:chemistry*; D017953:Isocyanates / Q000737:chemistry*; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry; D009570:Nitriles / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry; D011728:Pyridones / Q000138:chemical synthesis* / Q000737:chemistry; D012238:Rhodium / Q000737:chemistry; D013237:Stereoisomerism; D013696:Temperature
C406943:BINAP, 2-naphthol; D004987:Ethers; D017953:Isocyanates; D009281:Naphthalenes; D009570:Nitriles; D009942:Organometallic Compounds; D011725:Pyridines; D011728:Pyridones; D012238:Rhodium