Zobrazeno 1 - 10
of 84
pro vyhledávání: '"ULRICH T. MUELLER-WESTERHOFF"'
Publikováno v:
Organometallics. 22:4778-4782
Unlike other dithiolenes, ferrocenyl-substituted dithiolenes show two low-energy absorptions of comparable intensity in the 1200 and 750 nm regions. The longest wavelength peak is strongly influenced by electron-donating or -withdrawing groups, where
Publikováno v:
Journal of Organometallic Chemistry. :823-826
Cyclic voltammetry in CH 2 Cl 2 containing 0.1 M [NBu 4 ][B(C 6 F 5 ) 4 ] gives enhanced behavior for the oxidation of complexes containing two or more ferrocenyl groups, owing to better stabilities and solubilities of the multiply-charged oxidation
Publikováno v:
Journal of Organometallic Chemistry. 512:219-224
We reported in 1993 an efficient synthesis of ferrocene and ruthenocene mono- and dialdehydes which suggested the first truly specific monolithiation of these two metallocenes (U.T. Mueller-Westerhoff, Z. Yang and G. Ingram, J. Organomet. Chem., 463
Publikováno v:
The Journal of Organic Chemistry. 59:4988-4992
The reaction of an equimolar mixture of N,N'-dialkylethylenediamines and diethyl oxalate in diethyl ether or 2-propanol leads to 1,4-dialkylpiperazine-2,3-diones. As cyclic and nearly planar tetraalkyl oxamides, these compounds are able to react with
Publikováno v:
Synthetic Communications. 24:1389-1393
The preparation of 4- and 5-t-Bu-pyrrole-2-aldehyde can be brought about in a high yield and purity using Vilsmeier-Haack type reactions as conclusions to reaction sequences involving a 1-benzenesulfonyl directing group on pyrrole (4-substitution) or
Publikováno v:
Synlett. 1994:975-984
Publikováno v:
Journal of Organometallic Chemistry. 463:163-167
Lithioferrocene, 1,1′-dilithioferrocene, lithioruthenocene and 1,1′-dilithioruthenocene all react with N , N -dimethylformamide in diethyl eth
Publikováno v:
Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 23:589-605
A new synthetic route to ruthenocene, [1.1]ferroceno-ruthenocenophane, and [1.1]ruthenocenophane involves the use of ruthenium(II) carboxylates, (Ru2OCR)4,R = C3H7 and C7H15), the metal source and does not, as most alternate sytheses do, require an e
Publikováno v:
Tetrahedron Letters. 34:571-574
Short reflux of an equimolar mixture of N-N′-dimethyl ethylenediamine and diethyl oxalate in i-propanol or diethyl ether leads to 1,4-dimethyl-piperazine-2,3-dione, which is able to react with two equivalent of organolithium or Grignard compounds t
Publikováno v:
ChemInform. 22
Cet article presente une serie de composes aromatiques et leurs complexes avec le nickel. Spectres electroniques dans l'infrarouge proche. Synthese bibliographique