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Platinate, dimethyl

On reduction with sodium amalgam the acid adds on two atoms of hydrogen the resulting amorphous aeid yields a crystalline dimethyl ester, C2iH2gOgN2, colourless prisms, m.p. 143-7° dec.). On hydrogenation in presenee of platinic oxide as catalyst 2 mols, of hydrogen are absorbed to form the acid, CjgHjgOgNj, colourless prisms, [ajo - -17-7° (HjO). On oxidation with chromic acid the Cjg acid is converted into Wieland s Ci7 acid and Hanssen s Cjg acid. ... [Pg.567]

Wahrend die Co-reduktion von Propinsaure-athylester und Methyljodid in DMF/Te-trabutylammoniumjodid an Platin das Hauptprodukt 2,2-Dimethyl-pentin-(3)-sau-re-athylester nur zu 37% d. Th. liefert5, reagiert Pentin-(2)-saure-athylester einheitlicher ... [Pg.639]

Acetoxy-6-oxo-l,4-dimethyl-tricyclo 3.2.2.02[Pg.660]

Interessante Trimere liefert 2-Mcthyl-propanal. Bei der Beschickung der beiden Elek-trodenraume einer geteilten Zelle (Platin-Elektroden) mit 2-Methyl-propanal/Tetra-butylammonium-hexafluorophosphat entsteht an der Anode 2,4,6-Triisopropyl-1,3,5-trioxan (95% d. Th.) und an der Kathode 4-Hydroxy-5,5-dimethyl-2,6-diisopropyl-l,3-dioxan (90% d. Th.), jeweils in sehr hoher Ausbeute1 ... [Pg.667]

Platin Bis-[dimethyl-phcnyl-phosphan]-diethinyl-iodo-trifluoromethyl- XIII/9a. 844 (F,G —1 — L2PtR,)... [Pg.727]

Dimethyl-phosphinsaure-methylamid-methylimid bildet nach Metallierung mit Butylli-thium mit Platin-komplex-Salzen stabile Komplexe1122. [Pg.295]

An large number of pyrazines were subjected to X-ray crystallographic analysis. Those in the realm of metal complexes included [/i-2,3,5,6-tetrakis(2-pyridyl)pyrazine]bis[chloroplatinum(II)] bis[trichloro(dimethyl sulfoxide-ir5)platinate(II)] 152 <03AX(E)411>, tetraaqua-1,2,4,5-benzenetetracarboxylato(pyrazine)dicobalt(II) dihydrate <03AX(E)841>, polymeric... [Pg.370]

Platin(IV) Bis-[trimethylarsan]-dimethyl-iodo-(trideutero-methyl)- XIII/9a, 832... [Pg.687]

An oligomeric polysiloxane photoinitiator (PSDAP) containing dialkoxy acetophenone moieties, prepared by reacting diallyloxy-acetophenone with penta-methyl-disiloxane and H-terminated dimethyl-silicone in the presence of chloro-platinic acid, has been claimed [87] to be compatible with silicone prepolymers containing methylvinyl siloxane co-units and active in their UV curing. [Pg.167]

A variety of diverse synthetic methods have been empioyed for the preparation of cyclopropane (1 j. Schlatter and Demjanov and Dojarenko pyrolyzed cyclopropyltrimethylammonium hydroxide at 320°C using platinized asbestos as the catalyst. About equal amounts of cyclopropene (1) and cyclopropyidimethylamine are formed, contaminated with some dimethyl ether and ethylene. Treatment with dilute hydrochloric acid removed the amine from the gas stream and 1 was separated from the other products by gas chromatography. Alder-Rickert cleavage of the Diels-Alder adduct formed from cycloheptatriene and dimethyl acetylenedicarboxylate resulted only in the formation of a polymer and trace amounts of 1. A simple approach by Closs and Krantz based on the synthesis of 1-methylcyclopropene involved the addition of allyl chioride to a suspension of sodium amide in mineral oil at 80°C. Under the conditions employed, 1 could readily escape from the reaction mixture. Though a number of variations were tried, the yield of 1 never exceeded 10%. [Pg.301]

Entsprechend werden aus o- und p-Xylol an Platin-Katalysatoren bei 20°cis-l,2- bzw. -1,4-Dimethyl-cyclohexan erhalten5-7, bei hohen Temperaturen (170°)7,8 wie auch mit Nickel-Katalysatoren (170—180°)7 8 trans-L2-bz.w. -1,4-Dimethyl-cyciohexarr, m-Xylol ergibt durchweg cis-1,3-Dimethyl-cyclohexan 1 als kinetisch und thermodynamisch kon-trolliertes Produkv 7,i). Weitere Beispiele sind in Tab. 29 (S. 94) zusammengestellt. [Pg.92]

Bis-[3-diathylamino-2,2-dimethyl-propyl]-amin4 Eine Losung von 5,4 g ( 19 mMol) 3-Diathylamino-2,2-dimethyl-propanal-3-diathylamino-2,2-dimethyl-propylimin in 100 ml Athanol wird liber 0,1 g Platin(IV)-oxid bei 2072 bar hydriert. Nach Aufnahme der ber. Menge Wasserstoff ( 30 Min.) wird filtriert, eingedampft und fraktioniert Ausbeute 2,9 g (53°/o d.Th.) Kp 5.2,0 130—135° n = 1,4502. [Pg.226]

Mit guten Ausbeutenlassen sich auch Dialkyl-hydrazone mit Palladium/Kohle bzw. Platin(IV)-oxid zu Trialkyl-hydrazinen hydrierenvgL 1 so erhalt man z. B. aus Formalde-hyd- bzw. Acetaldehyd-dimethylhydrazon iiber Pd/Kohle (25—3871 bar) 73% d.Th. Trimethyl-hydrazin bzw. 77% d.Th. 2,2-Dimethyl-l -athyl-hydrazin2. [Pg.243]

Diese partielle Hydrierung zum 2,3-Dihydro-indol gelingt auch mit anderen Kata-lysatoren. Als besonders geeignet erwies sich Kupferchromit bei 155—1907250 bar wer-den hiermit auch 2-Methyl-, 2-Phenyl-, 3-Athyl- und 1,2-Dimethyl-indol zu 2-Methyl-, 2-Phenyl-, 3-Athyl- bzw. 1,2-Dimethyl-2,3-dihydro-indol umgesetzt5 vgL 8. Mit Nickel-7, Platin-9 und Palladium-Katalysatoren10 vgl jedoch 11 konnen Indole oft bereits unter erheb-lich milderen Bedingungen partiell hydriert werden. [Pg.294]

Dimethyl-l,2,3,4-tetrahydro-chinoxalin9 0,2 Mol 6,7-Dimethyl-chinoxalin werden in 250ml Benzol mit 1 g Platin(IV)-oxid bei 2074 bar bis zur Aufnahme von 0,4 Mol Wasserstoff hydriert. Nach dem Filtrieren und Einengen i. Vak. wird aus Benzol umkristallisiert Ausbeute 22,1 g (69,0% d.Th.) F 154°. [Pg.325]

In this synthesis tetrabutylammonium trichloro (dimethyl sulfide) platinate(II) is prepared by the reaction of di-jt-chloro-dichlorobis (dimethyl sulfide) diplatinum (II) with tetrabutylammonium chloride by a modification of the method of Goggin et al.1... [Pg.128]

KHgRu C ,HiK, Ruthenium, (p.4-mercury)-bis nonacarbonyK p.j-3,3-dimethyl-1 -bu-tynyl)-triongii/o-tri-, 26 333 0 kN 0s,P4C,H Osmate(2-), octadeca-carbonylhexa-, bis(p-nitrido-bis(tri-phenylphosphorus)(l +)], 26 300 0, N Pt,C,4H4, Platinate(2-), tris[tri-p.-carbonyl-tricarbonyltri-, bis(tetra-ethylammonium), 26 322 0 k0s C H2, Osmium, octadeearbon-yldihydridohexa-, 26 301 OihOs C, Osmium, octadecarbonyl-hexa-, 26 295... [Pg.411]


See other pages where Platinate, dimethyl is mentioned: [Pg.3]    [Pg.191]    [Pg.746]    [Pg.257]    [Pg.5]    [Pg.219]    [Pg.402]    [Pg.403]    [Pg.315]    [Pg.170]    [Pg.563]    [Pg.181]    [Pg.411]    [Pg.22]    [Pg.212]    [Pg.214]    [Pg.233]    [Pg.253]    [Pg.80]    [Pg.290]    [Pg.321]    [Pg.325]    [Pg.329]    [Pg.423]    [Pg.128]    [Pg.266]    [Pg.275]    [Pg.398]    [Pg.781]    [Pg.339]    [Pg.253]   
See also in sourсe #XX -- [ Pg.31 , Pg.285 ]




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Platinate

Platination

Platinic

Platinization

Platinized

Platinizing

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