Results 161 to 170 of about 20,000 (189)
Synthesis of Phosphorylated Piperazines [PDF]
Phosphorus, Sulfur, and Silicon and the Related Elements, 2013 Heating 3-methyl-1,2-butadienyl phosphonates with piperazine leads to the formation of 2-piperazinyl-butenyl phosphonates containing the enamine functionality. From the reaction of piperazine with four equivalents of 1,2-butadienyl phosphonate a bis(phosphonate) is obtained, in which the piperazine bridge links two phosphorylbutene fragments.
N. G. Khusainova +4 more
openaire +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Substituted Sulfonyl Piperazines
Journal of Pharmaceutical Sciences, 1962Abstract In view of reports in the literature on the anticonvulsant action of various sulfonyl piperazines and of certain substituted 1-sulfonyl-4- β -aminoethylpiperazines as antishock agents, a series of mono- and disulfonyl β -aminoethylpiperazines have been prepared.
Merle E. Amundson +2 more
openaire +3 more sources
Piperazine in the Treatment of Enterobiasis
Archives of Pediatrics & Adolescent Medicine, 1955Enterobiasis is the most common helminth infestation in the United States. The pinworm has proved to be a difficult parasite to eradicate for the human race. Although reports of therapeutic agents have filled the medical literature throughout the years, not one drug has been universally accepted.
Willard R. Ferguson, Morton H. Rachelson
openaire +3 more sources
Reactions of vinylphosphonates with piperazines
Russian Journal of General Chemistry, 2017© 2017, Pleiades Publishing, Ltd. Dialkyl [2-(piperazin-1-yl)ethyl]phosphonates were obtained by the reactions of piperazine with dialkyl vinylphosphonates. The addition of 2-(piperazin-1-yl)ethanamine to diethyl vinylphosphonate involves the primary exocyclic amino group of the heterocyclic compound.
N. G. Khusainova +2 more
openaire +4 more sources
Therapy of Ascariasis with Piperazine
The American Journal of Tropical Medicine and Hygiene, 1955Summary The following cure rates were achieved in Ascaris lumbricoides infections with piperazine citrate syrup: one day treatment, 74 per cent; two days, 94 per cent. A five day course with smaller daily doses but a larger total amount gave a cure rate of 91 per cent. A minor toxic side effect, possibly due to the drug, was observed in only one of 136
openaire +3 more sources
Cetirizine: A piperazine antihistamine
Clinics in Dermatology, 1991Abstract Cetirizine (2-(2-(4-(4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)acetic acid dihydrochloride) (Fig 1) is the principal human metabolite of hydroxyzine (Fig 2), a member of the piperazine class of antihistamines. It is a selective H1 histamine receptor antagonist, which has been shown to be effective in the treatment of urticaria and ...
openaire +3 more sources
Solubility of H2S in (H2O + piperazine) and in (H2O + MDEA + piperazine)
Fluid Phase Equilibria, 2003Abstract New experimental results for the solubility of hydrogen sulfide in aqueous solutions of piperazine are presented for piperazine molalities up to 4 mol/kg of water, temperatures between 313 and 393 K, and pressures up to about 9 MPa. Furthermore, the solubility of hydrogen sulfide was measured in about 2 m MDEA + 2 m piperazine aqueous ...
Álvaro Pérez-Salado Kamps +2 more
openaire +2 more sources
Derivatives of Piperazine. XXI. Synthesis of Piperazine and C-Substituted Piperazines [PDF]
Journal of the American Chemical Society, 1947 C. B. Pollard, Leland J. Kitchen
openaire +2 more sources
Piperazin‐Derivate, I. Alkyl‐, Aryl‐, Aralkyl‐piperazin‐Derivate
Chemische Berichte, 1967AbstractNach einem neuen Verfahren wurden die Aryl‐, Aralkyl‐ und Alkyl‐piperazine 1–14 her‐gestellt und der Ablauf der Reaktion untersucht. Aus 1.4‐Bis‐[1‐methyl‐2‐phenyl‐äthyl]‐piperazin (3) wurden geometrische und optische Isomere gewonnen.
Kálmán Lányi +3 more
openaire +2 more sources
Quantitative Determination of Piperazine Citrate in Piperazine Citrate Syrup USP
American Journal of Health-System Pharmacy, 1976An assay for piperazine citrate in Piperazine Citrate Syrup USP is described. The assay method is based on the formation of a complex of piperazine with an acid dye, bromothymol blue. The complex can be extracted with chloroform and measured spectrophotometrically.
openaire +3 more sources