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The hydrogenation of benzene and other arene substrates under biphasic conditions is evaluated using the catalyst precursor Ru(eta(6)-C10H14)(pta)Cl-2 (pta = 1,3,5-triaza-7-phosphaadamantane) immobilised in water and 1-alkyl-3-methylimidazolium tetrafluoro ...
This article describes BP86/SV(P) (DFT) calcns. on a representative set of weakly coordinating anions (WCAs) of type [M(L)n]-, their parent neutral Lewis acids M(L)n-1 and their ate complexes with fluoride, i.e., [FM(L)n]n-1 (M = B, L = F, OTeF5, C6H5, C6F ...
Sensitive photoacoustic detection of methane (CH4), hydrogen chloride (HCI) and water vapour (H2O) in the near-infrared range using semiconductor DFB lasers is reported. A detection limit of 0.17 ppm of CH4, 0.2 ppm of HCI and 0.024 ppm of H2O (signal-to-n ...
A solution phase combinatorial synthesis of aryl piperazines 1 and 2 is described based on the S(N)Ar reaction and Schotten-Baumann acylation. The use of excess reagent is allowed and pure arylpiperazines 1 and 2 were obtained by simple acid/base washing. ...
The novel versatile Co(I) tris-carbene complex [(TIMENxyl)Co]Cl (1) (TIMEN = (tris[2-(3-aryl-2,3-dihydro-1H-imidazol-2-ylidene)ethyl]amine)) reacts with CO, 1-electron oxidizers such as CH2Cl2, and O2 to yield the Co complexes [(TIMENxyl)Co(CO)]Cl (2), [(T ...
Multi-hydrogenated compounds detection based on photoacoustic (PA) spectroscopy is reported. Three near-infrared semiconductor lasers are used with a resonant PA cell operated in its first longitudinal mode to monitor methane, water vapour and hydrogen chl ...
Methyl 2-deoxy-2-[(1S)-2.5-dideoxy-2.5-imino-L-ribitol-1-C-yl)-alpha-D-glucopyr anoside ((+)-6) was obtained from the product of Nozaki-Kishi coupling of 2,5-{[(tert-butoxy)carbonyl]imino}-2,5-dideoxy-3,4-O-isopropl-idene-L-ri bose ((-)-9) and 4-0-benzyl-6 ...
Radical C-glycosidation of racemic 5-exo-benzeneselenyl-6-endo-chloro-3-methylidene-7-oxabicyclo[2.2.1]hept an-2-one ((+/-)-2) with alpha -acetobromofucose (3) provided a mixture of alpha -C-fucosides that were reduced with NaBH4 to give two diastereomeric ...
Cisplatin, CiS-[PtCl2(NH3)(2)], is known to bind to human serum transferrin, but the binding site remains a matter of some debate. Electrospray ionisation mass spectrometry has been used to characterise the interaction of cisplatin with transferrin. The st ...
The authors describe an efficient synthesis of nonproteinogenic title amino acid I, an important building block in the synthesis of vancomycin-type antibiotics. The chirality was introduced by AMANO acylase-catalyzed enantioselective hydrolysis, and the ov ...
