Ru-Catalyzed Intermolecular [3+2+1] Cycloaddition of α,β-Unsaturated Ketones with Silylacetylenes and Carbon Monoxide Leading to α-Pyrones

2007 ◽  
Vol 9 (4) ◽  
pp. 587-589 ◽  
Author(s):  
Takahide Fukuyama ◽  
Yuki Higashibeppu ◽  
Ryo Yamaura ◽  
Ilhyong Ryu
Keyword(s):  
Carbon Monoxide ◽  
Unsaturated Ketones

scholarly journals Palladium Catalyzed Alternating Cooligomerization of Ethylene and Carbon Monoxide to Unsaturated Ketones

1995 ◽  
Vol 50 (3) ◽  
pp. 430-438 ◽  
Author(s):  
Wilhelm Keim ◽  
Heiko Maas ◽  
Stefan Mecking
Keyword(s):  
Carbon Monoxide ◽  
Palladium Catalysts ◽  
Methylene Chloride ◽  
General Structure ◽  
Phosphine Ligands ◽  
Unsaturated Ketones ◽  
Palladium Catalyzed ◽  
First Time ◽  
Cationic Palladium

Cationic palladium catalysts have been used to cooligomerize ethylene and carbon monoxide. At high ethylene/CO ratios (m /m = 10:1) in methylene chloride as a solvent, unsaturated alternating cooligomers of the general structure R[C(O)CH2CH2]mH ( m ≥ 1 ; R ≡CH2=CH-, CH2=CHCH2CH2- and CH3CH = CHCH2-) were obtained for the first time. Single component catalyst precursors [(allyl)Pd(P^X )]+Y- (P^X = Ph2P(CH2)nC(= O )OR, Ph2P(CH2)2P(=O)Ph2, Ph2P(CH2)nPh2P(CH2)2S (=O )Ph, n = 1 - 3 , R = Me, Et; Y- = BF4-, SbF6- ) with bidentate P,O- and P,S-ligands as well as in situ catalysts with unfunctionalized phosphine ligands were used. With P"Bu3 as a ligand, selectivities for ethylvinylketone of 40% based on the CO converted were obtained. The hemilabile phosphino-ester and phosphinothiophene ligands behave like monodentate phosphines under catalytic conditions.

ChemInform Abstract: Selective Synthesis of Quinolines and Indoles: Sulfur-Assisted or Selenium-Catalyzed Reaction of β-(2-Nitrophenyl)-α,β-unsaturated Ketones with Carbon Monoxide.

ChemInform ◽  
2015 ◽  
Vol 46 (16) ◽  
pp. no-no
Author(s):  
Rui Umeda ◽  
Hiroshi Kouno ◽  
Takayuki Kitagawa ◽  
Tomohiro Okamoto ◽  
Keisuke Kawashima ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Selective Synthesis ◽  
Unsaturated Ketones

Selective Synthesis of Quinolines and Indoles: Sulfur-Assisted or Selenium-Catalyzed Reaction of β-(2-Nitrophenyl)-α,β-unsaturated Ketones with Carbon Monoxide

2014 ◽  
Vol 25 (6) ◽  
pp. 698-703 ◽  
Author(s):  
Rui Umeda ◽  
Hiroshi Kouno ◽  
Takayuki Kitagawa ◽  
Tomohiro Okamoto ◽  
Keisuke Kawashima ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Selective Synthesis ◽  
Unsaturated Ketones

Carbon monoxide poisoning

2000 ◽  
Vol 12 (4) ◽  
pp. 354-357
Author(s):  
David R Smart ◽  
Paul D Mark
Keyword(s):  
Carbon Monoxide ◽  
Carbon Monoxide Poisoning
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