The title compound, C(15)H(16)ClN(5)O, contains two mol-ecules, A and B, in the asymmetric unit, in which the dihedral angles between the terminal aromatic rings are 42.41 (17) and 45.77 (18)°. The central six-membered ring in both mol-ecules has a chair conformation with equatorial substituents. In the crystal, mol-ecules are linked into [100] C(4) chains of alternating A and B mol-ecules by N...

The reaction of the thiomorpholine-4-carbonitrile and piperazine-1,4-dicarbonitrile ligands afforded four Ag(i) coordination polymers with excellent photocatalytic activity in degradation mordant blue 9 dye.

cyclizine (1-benzhydryl-4-methyl-piperazine, cas 82-92-8, cyc, i), a piperazine derivative, belongs to h1 antihistamine group of drugs that shows such pharmacological properties as anti-inflammatory, anti-allergic and anti-platelet effects, similar to other h1-receptor antagonists. in this study, two new tolyl and cumene derivatives of i (1-ethyl-4-[(p-isopropylphenyl) (p-tolyl) methyl]-piperaz...

The crystal and molecular structure of tert-butyl 4-(2-tert-butoxy-2-oxoethyl)piperazine-1-carboxylate is reported. The title compound crystallizes from a petroleum ether/ethyl acetate mixture in the monoclinic space group P 21/c with four molecules in the unit cell. The unit cell parameters are: a = 8.4007(2) Å, b = 16.4716(4) Å, c = 12.4876(3) Å; β = 90.948(1)° and V = 1727.71(7) Å. Bond leng...

In the title salt, C(8)H(16)N(2)O(4) (2+)·2H(2)PO(4) (-)·2H(2)O, the piperazine ring is located around an inversion center and adopts a chair conformation. The dihydrogen phosphate anions and free water mol-ecules are linked via O-H⋯O hydrogen bonds into two-dimensional hydrogen-bonding layers, which are further connected through O-H⋯O and N-H⋯O hydrogen bonds involving the protonated piperazin...

A considerable body of literature exists on the biological activity of compounds containing the piperazine moiety. In the field of 1-benzyl-4-diphenylmethylpiperazines, antihistaminics,2-4) tranquillizers,5,6) and vasodilators7) have been reported. Some of them, such as buclizine (1), meclizine (2) and medibazine (3), have been used clinically. More recently, 1-diphenylmethyl-4-(4-hydroxybenzyl...

A Vilsmeier salt supported on solid phase was prepared using piperazine bound to Merrifield resin. Piperazine was selected because it contains two secondary amines: one of the amines is protected upon binding to the resin, and the second was formylated to give resin-1-N-piperazine-4-N-carboxaldehyde (9). Activation of the formamide with either bis(trichloromethyl)carbonate (BTC) or POCl(3) affo...

The asymmetric unit of the title compound, (C(5)H(14)N(2))[ZnCl(4)], consists of a diprotonated 2-methyl-piperazine cation and a tetra-chloridozincate anion. The Zn(II) ion is in a slightly distorted tetra-hedral coordination environment. The six-membered piperazine ring adopts a chair conformation. The crystal structure is stabilized by inter-molecular N-H⋯Cl hydrogen bonds.