Synthesis and effects on intracellular calcium of some 1,3-bis-(heteroaryl substituted)benzene derivatives
作者:Asiye Merıç、Zerrin İncesu、İlhan Işikdağ
DOI:10.1016/s0014-827x(02)01246-6
日期:2002.7
A series of 1,3-bis-(heteroaryl substituted)benzene derivatives was designed as promising molecules which might increase intracellular Ca2+ level in F2408 fibroblast-like cells by affecting the Ca2+ channels on plasma membrane. Mentioned compounds were obtained by the treatment of isophtalaldehyde with benzil or 1,2-phenylenediamine derivatives. In this way, 13 compounds were synthesised and their structure elucidations were performed by IR, H-1 NMR and mass spectroscopic data and elemental analysis results. Some of the compounds showed Ca2+ being released from the intact cells. (C) 2002 editions scientifiques et medicales Elsevier SAS. All rights reserved.
Unexpected Reaction Pathways in the Reaction of Alkoxyalkynylchromium(0) Carbenes with Aromatic Dinucleophiles
作者:Miguel A. Sierra、María J. Mancheño、Juan C. del Amo、Israel Fernández、Mar Gómez-Gallego
DOI:10.1002/chem.200305138
日期:2003.10.17
Compound 18 is formed by a nucleophilic addition to a CO ligand in a preformed carbene complex. This is a new example of the rare attack of a nucleophile on a CO ligand in a Fischer carbene complex. Adducts 10 form seven-membered-ring carbene complexes 19 and 20 by intramolecular aminolysis. In contrast, reaction of alkynyl carbene complexes with 1,8-diaminonaphthalene under very mild conditions leads to