Results 221 to 230 of about 73,933 (268)
Synthesis of Pyridinium Amphiphiles Used for Transfection and Some Characteristics of Amphiphile/DNA Complex Formation [PDF]
European Journal of Organic Chemistry, 2000 Pyridinium amphiphiles have found practical use for the delivery of DNA into cells. Starting from 4-methylpyridine, a general synthesis has been devised for the production of pyridinium amphiphiles which allows variation in both the hydrophobic part and ...
Marc C A Stuart, Marcel H J Ruiters
exaly +4 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Pyridinium dihydrogenmonothiophosphate
Acta Crystallographica Section C Crystal Structure Communications, 2000By reaction of pyridine dithiomonometaphosphoryl fluoride with ethyldiphenylphosphine in the presence of traces of water, we isolated crystals of the title compound, (I). In the structure of this salt, two kinds of hydrogen bonds were detected. They link N-H (part of the cation), as well as one O-H group (part of the anion), to the phosphoryl O atom of
B, Ziemer, A, Rabis
openaire +2 more sources
2-(Hydroxymethyl)pyridinium dihydrogenphosphate
Acta Crystallographica Section C Crystal Structure Communications, 2003The title compound, C(6)H(8)NO(+).H(2)PO(4)(-), consists of 2-(hydroxymethyl)pyridinium and dihydrogenphosphate ions. The dihydrogenphosphate moieties are linked into chains by pairs of P-O-H.O-P hydrogen bonds. The 2-(hydroxymethyl)pyridinium cations are connected to the dihydrogenphosphate units by O-H.O and N-H.O hydrogen bonds.
Demir, S +2 more
openaire +3 more sources
Synthesis and studies on pyridinium pentafluorozirconate and pyridinium oxotetrafluoroniobate
Journal of Fluorine Chemistry, 1994Abstract Pyridinium pentafluorozirconate, (C5H5NH)ZrF5, and pyridinium oxotetrafluoroniobate, (C5H5NH)NbOF4, have been synthesised by the reaction of pyridinium poly(hydrogen fluoride), PPHF, with ZrOCl2 and Nb2O5, respectively. These new complexes have been characterised by chemical analysis, thermal analysis, X-ray diffraction and infrared spectra.
Singh, Ram Niwas, Padma, DK
openaire +2 more sources
Antimycobacterial Activity of Quaternary Pyridinium Salts and Pyridinium N-oxides - Review
Current Pharmaceutical Design, 2012The treatment of tuberculosis and other mycobacterioses is still a major world health problem and new antimycobacterial compounds unrelated to approved drugs are in demand. Quaternary ammonium salts have revealed many usable properties especially as antimicrobials; they are widely used as disinfection and antiseptic agents.
Martin, Krátký, Jarmila, Vinšová
openaire +2 more sources
Acta Crystallographica Section C Crystal Structure Communications, 2000
The β modification of pyridinium dichloroiodide, C 5 H 6 N + .Cl 2 I - , was obtained as yellow crystals by the reaction of (C 5 NH 5 )AuCl 3 , C 5 H 6 N + .Cl - and I 2 in a vacuum-sealed ampoule. The dichloroiodide ion is nearly symmetric and linear with I-Cl bond lengths of 2.544 (3) and 2.550 (3) A and a Cl-I-Cl angle of 179.68 (12)°.
Ernesto Schulz Lang +2 more
openaire +1 more source
The β modification of pyridinium dichloroiodide, C 5 H 6 N + .Cl 2 I - , was obtained as yellow crystals by the reaction of (C 5 NH 5 )AuCl 3 , C 5 H 6 N + .Cl - and I 2 in a vacuum-sealed ampoule. The dichloroiodide ion is nearly symmetric and linear with I-Cl bond lengths of 2.544 (3) and 2.550 (3) A and a Cl-I-Cl angle of 179.68 (12)°.
Ernesto Schulz Lang +2 more
openaire +1 more source
Chichibabin pyridinium synthesis
Tetrahedron Letters, 2019Abstract Chichibabin pyridine synthesis involves the reaction of three aldehydes and ammonia to form 2,3,5-trisubstituted pyridines. This study examined the synthesis of tetrasubstituted pyridinium from aldehydes and an amine hydrochloride in the presence/absence of Pr(OTf)3.
Akiho Imura, Nao Tanaka, Toyonobu Usuki
openaire +1 more source
Acta Crystallographica Section C Crystal Structure Communications, 1996
Attempted crystallization of pamoic acid from its solution in pyridine instead produced the crystalline title compound, bis(pyridinium) 4,4′-methylenebis(3-hydroxy-2-naphthalenecarboxylate), 2C5H6N+.C23H14O62−. In this structure, intramolecular hydrogen bonding involves hydroxyl O atoms as donors and carboxylate O atoms as acceptors, while ...
A. C. Blackburn +2 more
openaire +1 more source
Attempted crystallization of pamoic acid from its solution in pyridine instead produced the crystalline title compound, bis(pyridinium) 4,4′-methylenebis(3-hydroxy-2-naphthalenecarboxylate), 2C5H6N+.C23H14O62−. In this structure, intramolecular hydrogen bonding involves hydroxyl O atoms as donors and carboxylate O atoms as acceptors, while ...
A. C. Blackburn +2 more
openaire +1 more source