Pentamine

Dipping solution II Dissolve 24 ml tetraethylene pentamine and 60 mg butyl-hydroxytoluene in 36 ml dichloromethane. 

The involvement of acrylamide monomer in the initiation step is also observed in the pentamine-aqua-co-balt(III) complex [47]. 

Fig. 1 Examples of the structures of a few slow-response electric field sensitive dyes 3, 3 -dipropylthiadicarbocyanine (DiSC3(5)), tetramethylrhodamine methyl ester (TMRM), and bis-(3-propyl-5-oxoisooxazol-4-yl)pentamine oxonol (oxonol VI)...

For the Ni-Al2C>3 system [27] there was little effect of pH on the amount of incorporation above a pH of 2. However, decreasing the pH below 2 resulted in a sharp decrease in the amount of incorporation. Below a pH of 2.0, reportedly no particle incorporation was obtained for copper plating with SiC or AI2O3 [27], Other researchers [25] found no effect of pH on amount of BaS04 incorporated within a copper matrix, in the presence of tetraethylene pentamine, although in the presence of thallous ions incorporation for the same system was found to increase with pH. 

The effect of bath additives on the electrocodeposition of alumina-copper has been studied. Chloride ion was found to significantly inhibit incorporation of alpha alumina in an acidic copper bath [27, 51], whereas thallium ions, cesium ions, and tetra-ethylene pentamine were promoters [25, 32]. 

The conversion of tetralin to a-tetralone may be achieved under aqueous biphasic conditions in the presence of 02, using NiCl2 as a catalyst, as shown in Scheme 9.3 [7], It is necessary to use tetraethylene pentamine (TEPA) as a surface-active ligand, as well as an emulsifier, dodecyl sodium sulfate. Some alcohol and naphthol by-products were also observed, and a radical chain mechanism has been proposed for this reaction. 

Eine intramolekulare Alkylierung tritt auf bei der Kondensation von 5-Brom-2-oxo-pen-tansaure mit einem Kobalt(III)-pentamin-Komplex. Reduktion mit Boranat fuhrt zu racemischem Prolin ( 90%). Das intermediate Kobalt-prolin-Chelat ist mit (+)-Anti-mon-tartrat in optische Antipoden spaltbar1. 

UDMH is known to be miscible with the following wafer, benzene, triethyl benzene, toluene, kerosene, ethyl alcohol, isobutyl alcohol, n-butyl ether, n-amyl ether, n-hexyl ether, diethyl ether, petroleum ether, petroleum naphtha, n-heptane, n-hexane, n-octane, n-decane, n-dodecane, n-hexadecane, cyclohexane, 1,2-dimethyl cyclohexane, phenyl cyclohexane, n-tetradecane, trichloroethylene, dichloroethylene, perchloroethylene, 1,1,1-trichloroethane, triethyl amine, ethylenediamine, diethylene triamine, acetonitrile, aniline, cumene, tetra-hydronaphthalene, tetraethylene pentamine, ethylene glycol and hydrazine (Ref 4)... 

Tetraethylene pentamine 163 0.8 4.6 FALSE FALSE FALSE FALSE... 

To a solution of tetraethylene pentamine pentahydrochloride (tetren.5HCl, Aldrich) (1.12 g, 3.0 mmol) dissolved in 20 mL of water is added 600 mg of NaOH (15 mmol, 5 equiv) followed by nickel(II) perchlorate (755 mg, 2.06 mmol) dissolved in 10 mL of water. The mixture is stirred for 20 min. Then silver perchlorate (3.12 g, 15 mmol, 5 equiv) is added in order to eliminate the chloride ions. The solution is left stirring for 1 h in the dark, then the solution is hltered through a glass frit to separate silver chloride. Then 20 mL of acetonitrile is added to the deep blue filtrate. A solution of potassium hexacyanochro-mate(III) (0.110 g, 0.33 mmol) in a minimum of water is added drop by drop, and the solution is left standing for a few days. The red-purple octahedral crystals that form are collected, washed with water, and air-dried (0.540 mg, 63% yield). 

The kinetic effects of C02 in the base catalyzed hydrolysis of some carboxylato amine cobalt(III) complexes have been reported (80-82). In the base catalyzed hydrolysis of oxalatopentaammine-cobalt(III) (80), C02 retarded the reaction due to the formation of a virtually unreactive ion-pair, f (N H .) r, 2 2 COi ]. The equilibrium constant for formation of carbonate ion-pairs with (glycinato-O) (tetraethylene-pentamine)cobalt(III), (81) and (o-methoxybenzoato) (tetraethylenepentamine)cobalt(III) (82) were, however, much smaller than for the oxalatopentamminecobat(III) and a very weak rate retardation and virtually no effect was observed in the base catalyzed hydrolysis of the latter two complexes. 

In contrast to CrBr3 the reaction of CrCl3 with neat alkylamines stops at the pentamine stage and gives the products [CrCl(RNH2)5]Cl2 (R = Me, Et, Prn, Bun, Bu C3H5).384,385 The... 

Recently, /t-peroxo Com complexes with the linear pentamine ligand 3,2,2,3-pent (papd) have been described. Here the ligand adopts configuration (105), with three chelate rings in one plane and with the planar . sec-NH proton closest to the end of the polyamine adjacent to the /r-peroxo bridge. This particular ju-peroxo complex is remarkably resistant to O—O bond fission by acid.874... 

Cyclic pentamines adopt folded coordination modes in octahedral coordination, with configurational isomerism possible if different chelate segments are present.26 Pentagonal bipyramidal coordination with planar macrocycles has been observed for tetradentate pyo macrocycles, e.g. (18) and (30).21 Reported hexaaza macrocycles fold to give octahedral coordination arrangements, again with the possibility of configurational isomerism.27... 

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