Thiourea- manganese

Tetrakis(thiourea)manganese(II) perchlorate, 1785 Triamminenitratoplatinum(II) nitrate, 4582 Triamminetrinitrocobalt(III), 4204... 

Tetrakis(2-methyltetrazol-5-yl)-hexaaza-l, 5-diene, 3008a 5,10,15,20-Tetrakis(2-nitrophenyl)porphine, 3901 Tetrakis(pentafluorophenyl)titanium, 3836 Tetrakis(pyrazole)manganese(II) sulfate, 3532 Tetrakis(pyridine)bis(tetracarbonylcobalt)magnesium, 3861 Tetrakis(thiourea)manganese(II) perchlorate, 1779... 

Dichlorotetrakis(Thiourea)manganese e 206-0300 5,20- Diethyl-10,15-dioxa-7,18-dithiatetracosane f j 221-1839... 

FURTHER EVIDENCE FOR A MAGNETIC TRANSITION IN DICHLOROTETRAKIS/THIOUREA/MANGANESE. 

There are few reports of oxidative addition to zerovalent transition metals under mild conditions three reports involving group 10 elements have appeared. Fischer and Burger reported the preparation of aTT -allylpalladium complex by the reaction of palladium sponge with allyl bromide(63). The Grignard-type addition of allyl halides to aldehydes has been carried out by reacting allylic halides with cobalt or nickel metal prepared by reduction of cobalt or nickel halides with manganese/iron alloy-thiourea(64). 

A particularly simple variation of this reaction has been developed (47, 48) in which the catalytic nickel species is formed in situ by reduction of nickel chloride with a manganese -iron alloy in the presence of thiourea. Allyl halide is added and at the same time acetylene and carbon monoxide are bubbled through the methanolic solution. Conversion is almost complete and yields of ar-methyl-2,5-dienoate of up to 80% have been claimed. 

Figure 4. Molecular structure of 1,3- cyclohexadienyl)manganese tricarbonyl complexed with three units of thiourea.

Copper(II) and cerium(IV) have been studied as oxidants in acetonitrile. The copper(II)-copper(I) couple has an estimated electrode potential of 0.68 V relative to the silver reference electrode. It has been studied as an oxidant for substances such as iodide, hydroquinone, thiourea, potassium ethyl xanthate, diphenylbenzidine, and ferrocene. Cerium(IV) reactions are catalyzed by acetate ion. Copper(I) is a suitable reductant for chromium(VI), vanadium(V), cerium(IV), and manganese(VII) in the presence of iron(III). For details on many studies of redox reactions in nonaqueous solvents, the reader is referred to the summary by Kratochvil. ... 

ASH] Ashcroft, S. J., Thermochemistry of thiourea complexes of the type [M (tu)4Cl2] (M = manganese, iron, cobalt, nickel, zinc, cadmium and mercury, J. Chem. Soc. A, (1970), 1020-1024. Cited on pages 128, 129,338. 

The purpose of this presentation Is to describe the results of field studies of dermal and Inhalation exposure of applicators and mixer-loaders to the fungicide mancozeb (DITHANE M-45 fungicide, 80Z active Ingredient wettable powder, a product of Rohm and Haas Company, Philadelphia, PA 19105, was used In these studies), a coordination product of zinc Ion and manganese ethyleneblsdlthlo-carbamate, and ethylene thiourea (ETU). The latter compound Is a decomposition product of all EBDC s (mancozeb, maneb, metlram, nabam and zlneb) and also Is produced from EBDC s as an artifact of the analytical procedure for ETU. 

Ethylene thiourea Glucanase L-Glutamic acid Glutaric anhydride Hydrazine Hydroxypropyl-a-cyclodextrin Hydroxypropyl-3-cyclodextrin Hydroxypropyl-y-cyclodextrin 12-Hydroxystearyl alcohol Jodamide Iodine Isotonic sodium chloride sol n. Japan (Rhus succedanea) wax Jelene Lactic acid Lauryl pyrrolidone Lauryl sulfate Lithium Lithium bromide Lithium citrate Manganese chloride (ous), anhydrous Manganese chloride (ous), tetrahydrate Mercury oxide (ic), red Methyl acetoacetate Methyl aspartic acid... 

The many papers on redox initiation include studies of very varied systems, e.g., persulphate with thiomalic acid, hydrogen peroxide with thiourea, and manganese(n) with ascorbic acid. Kinetic and mechanistic complications... 

Manganese(iii).— The rates of oxidation of thiourea derivatives and of benzene-1,2-dithiol by the [Mn(OH)] + ion have been shown to be controlled by the rate of substitution of the substrate at the ion, ... 

C22H70N32O12Pb3Si6f Tetrakis(thiourea)lead(II) formate, 38B, 711 C23H1sMnOgSn, Triphenyltin pentacarbonyl manganese, 32B, 335 C2 3H1gNPbS, Triphenyl(pyridine-4-thiolato)lead, 45B, 810 C23Hi9NSSn, (4-Thiopyridone)triphenyltin, 39B, 549 C23H2oN204Sn, Nitratotriphenyl(pyridine N-oxide)tin(IV)... 

---