Piperazine is an organic compound that consists of a six-membered ring containing two nitrogen atoms at opposite positions in the ring. Piperazine exists as small alkaline deliquescent crystals with a saline taste.
The piperazines are a broad class of chemical compounds, many with important pharmacological properties, which contain a core piperazine functional group.
Piperazines were originally named because of their chemical similarity with piperidine, part of the structure of piperine in the black pepper plant (Piper nigrum). It is important to note, however, that piperazines are not derived from plants in the Piper genus.
Piperazine is freely soluble in water and ethylene glycol, but insoluble in diethyl ether. It is a weak base with two pKbs of 5.35 and 9.73 at 25°C.; the pH of a 10% aqueous solution of piperazine is 10.8-11.8. Piperazine readily absorbs water and carbon dioxide from the air. Although many piperazine derivatives occur naturally, piperazine itself can be synthesized by reacting alcoholic ammonia with 1,2-dichloroethane, by the action of sodium and ethylene glycol on ethylene diamine hydrochloride, or by reduction of pyrazine with sodium in ethanol.
A. Partridge/The Heads
Pink confetti, shotgun wedding
Rocket secrets someone's shredding
Nineteenth floor.
Laundry ticket that exploded
Joust with Quaker pamphlet goaded
Into war.
Ankle deep we heroes amble
Ankel deep we wade
Ankel deep through someone else's
Ticker tape parade
Softly, softly, softly
Falls papersnow
Softly, softly, softly
All of our works blow away
Petals fell on Petaluma
Till-receipt from Montezuma's
Burger Hut.
Every day a billion dollars
Fall as black and white blue-collars
Plough their rut.
Softly, softly, softly
Falls papersnow
Softly, softly, softly
All of our works blow away
Ankle deep we heroes amble
Ankel deep we wade
Ankel deep through someone else's
Ticker tape parade
Jets folded from Wall Street Journal
Shoot down cartons care of Colonel's
Chicken Ranch
Kleenex where the guy's been cryin'
Goodbye note from girl who's flyin'
To new branch
Softly, softly, softly
Falls papersnow
Softly, softly, softly
All of our works blow away
Letters that I'd meant to send you
To torpedo and up-end you
Sheet by sheet
Tore up all the beg and bitter
Add them to the drift of litter
On your street
Softly, softly, softly
Falls papersnow
Softly, softly, softly
All of our works blow away
Ankle deep we heroes amble
Ankel deep we wade
Ankel deep through someone else's