A bleach and oxidation catalyst is provided comprising a catalytically active iron, manganese or copper complex including a specified pentadentate nitrogen-containing ligand. The metal complex can activate hydrogen peroxide or peroxyacids and provides favourable stain removal properties. In addition, a considerably improved stability of these metal complex compounds in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.
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(2008/06/13)
Gas Phase Thermolysis of Allyl Cyanomethyl Amine, Diallyl Cyanomethyl Amine, Diethyl Cyanomethyl Amine, and Diethyl Propargyl Amine
The title amines were pyrolyzed in a stirred-flow reactor at 380 - 510 deg C, pressures of 8 - 15 torr and residence times of 0.3 - 2.4 s, using toluene as carrier gas.The substrates with an allyl group yielded propene and iminonitriles as reaction products.HCN is formed by decomposition of the iminonitriles.The first-order rate coefficients for propene formation fit the Arrhenius equations.Allyl cyanomethyl amine: k(s-1) = 1013.29 +/- 0.35exp(-189 +/- 5 kJ/mol RT) Diallyl cyanomethyl amine: k(s-1) = 1013.00 +/- 0.20exp(-183 +/- 3 kJ/mol RT) Diethyl cyanomethyl amine gave a 20:1 gas mixture of ethylene and ethane, plus HCN.The liquid product fraction contained mainly N-ethyl methanaldimine.The first-order rate coefficients for ethylene formation followed the Arrhenius equation k(s-1) = 1015.30 +/- 0.24exp(-226 +/- 3 kJ/mol RT) Diethyl propargyl amine decomposed cleanly into allene and N-ethyl ethanaldimine.The first-order rate coefficients for allene formation fit the Arrhenius equation k(s-1) = 1012.84 +/- 0.30exp(-168 +/- 4 kJ/mol RT).The results suggest that the above allyl and propargyl amines decompose unimolecularly by mechanisms involving six-center cyclic transition states.For diethyl cyanomethyl amine, a nonchain free radical mechanism is proposed.
Martin, Gonzalo,Ascanio, Julian,Rodriguez, Jesus
p. 99 - 108
(2007/10/02)
Synthesis of a new series of 2,7-diazaspirononan-1-ones and study of their cholinergic properties
A new series of substituted 2,7-diazaspirononan-1-ones (1a-l), structurally related to the muscarinic agonist RS-86, has been synthesized and tested for cholinergic properties both in vitro and in vivo.None of the compounds showed significant cholinergic properties at either the central or peripheral level.A possible explanation for the lack of activity is given.Alzheimer's disease / cholinergic system / RS-86 / muscarinic agonists
Cignarella, G.,Villa, S.,Barlocco, D.
p. 115 - 120
(2007/10/02)
Synthesis of a new series of N-substituted-3-[1-alkyl(aryl)-4- piperidyl]azetidin-2-ones as possible muscarinic agents
A new series of N-substituted-3-[1-alkyl(aryl)-4-piperidyl]azetidin-2- ones 2a-j structurally related to the previously reported 2,7- diazaspiro[3,5]nonan-1-ones 1 have been synthesized and tested for their activity as muscarinic agents, both in vitro and in vivo. Preliminary pharmacological results showed that compounds 2 are devoid of significant cholinergic properties.
Cignarella,Villa,Barlocco
p. 1337 - 1340
(2007/10/02)
TiCl4 induced N-methyleneamine equivalents: A new route to aminoacetonitriles
TiCl4 induced N-methyleneamine equivalents from hexahydro-1,3,5-triazines or N-(methoxymethyl)amines were reacted with trimethylsilyl cyanide to give aminoacetonitriles in 40-90% yield.
Ha,Nam,Park
p. 155 - 160
(2007/10/02)
SYNTHESE D'IMINES LINEAIRES NON-STABILISEES PAR REACTIONS GAZ-SOLIDE SOUS VIDE(1).
Unstabilized imines are synthetized in gram-scale by vacuum dehydrochlorination of N-chloroalkylamines and by vacuum dehydrocyanation of α-aminonitriles on solid base.All the new compounds are characterized at low temperature by 1H, 13C NMR and IR spectroscopy.
Guillemin, Jean-Claude,Denis, Jean-Marc
p. 4431 - 4446
(2007/10/02)
Preventive activities of N-substituted-α-aminonitriles against Fusarium diseases
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Kirino,Oshita,Oishi,Kato
p. 25 - 30
(2007/10/02)
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