This compound may be made by the dehydrohalogenation of 1,4-dichloro-2-butyne by potassium hydroxide at low temperature:
- ClCH2C≡CCH2Cl → HC≡C-C≡CH
The bis(trimethylsilyl)-protected derivative may be prepared by the Hay coupling of (trimethylsilyl)acetylene:
- 2 (tms)C≡CH → (tms)C≡C-C≡CH
Read more about this topic: Diacetylene
Other articles related to "preparation":
... funds income and expense accruals and the pricing of securities at current market value Preparation of semi-annual and annual reports to shareholders Maintenance and ...
... During preparation, the chef moves throughout the kitchen providing guidance to each team ... Team members for one course also have ample opportunity to learn the techniques and special preparation tips for the other courses ... Except for some final, finishing touches, the major preparation is completed by 830 and, accompanied by a wine that has been selected to complement or enhance each ...
... Burow's solution is a pharmacological preparation made of aluminium acetate dissolved in water ... The preparation has astringent and antibacterial properties and is used to treat a number of skin conditions such as insect bites, rashes caused by poison ivy and ... Burow's solution is available over the counter as a generic preparation ...
... The biosynthesis of carvone is by oxidation of limonene. ...
... In June 2004 the FDA approved an immediate release preparation of omeprazole and sodium bicarbonate that does not require an enteric coating ... This preparation employs sodium bicarbonate as a buffer to protect omeprazole from gastric acid degradation ... This combination preparation is marketed in the United States by Santarus under the brand name Zegerid ...
Famous quotes containing the word preparation:
“With memory set smarting like a reopened wound, a mans past is not simply a dead history, an outworn preparation of the present: it is not a repented error shaken loose from the life: it is a still quivering part of himself, bringing shudders and bitter flavours and the tinglings of a merited shame.”
—George Eliot [Mary Ann (or Marian)
“Its sad but true that if you focus your attention on housework and meal preparation and diapers, raising children does start to look like drudgery pretty quickly. On the other hand, if you see yourself as nothing less than your childs nurturer, role model, teacher, spiritual guide, and mentor, your days take on a very different cast.”
—Joyce Maynard (20th century)
“Living each day as a preparation for the next is an exciting way to live. Looking forward to something is much more fun than looking back at somethingand much more constructive. If we can prepare ourselves so that we never have to think, Oh, if I had only known, if I had only been ready, our lives can really be the great adventure we so passionately want them to be.”
—Hortense Odlum (1892?)