Ethynyl group
Chemical group
| Chemical Compound | |
|---|---|
| Identifiers | |
| CAS Number | |
| PubChem CID | |
| ChemSpider ID | |
| UNII | |
| ChEBI | |
| ChEMBL | |
| Properties | |
| Chemical Formula | |
| Molar Mass | |
| Appearance | |
| Density | |
| Melting Point | |
| Boiling Point | |
| Hazards | |
| GHS Pictograms | [[File:|50px]] |
| GHS Signal Word | |
| GHS Hazard Statements | |
| NFPA 704 | [[File:|50px]] |
| References | |
The ethynyl group is a functional group in organic chemistry with the formula −C≡CH. It is derived from acetylene (C2H2) by removal of one hydrogen atom. The ethynyl group is characterized by a carbon-carbon triple bond, which is a defining feature of alkynes.
Structure[edit | edit source]
The ethynyl group consists of a carbon atom triple-bonded to another carbon atom, which is also bonded to a hydrogen atom. This linear arrangement gives the ethynyl group its unique chemical properties. The carbon-carbon triple bond is composed of one sigma bond and two pi bonds, making it a region of high electron density.
Reactivity[edit | edit source]
The ethynyl group is highly reactive due to the presence of the carbon-carbon triple bond. It can participate in a variety of chemical reactions, including:
- Nucleophilic addition reactions, where nucleophiles attack the electron-deficient carbon atom.
- Hydrogenation, where the triple bond is converted to a single bond by the addition of hydrogen.
- Halogenation, where halogens add across the triple bond.
Applications[edit | edit source]
Ethynyl groups are important in the synthesis of various pharmaceuticals, polymers, and organic compounds. They are used as building blocks in organic synthesis to introduce alkyne functionality into molecules.
See also[edit | edit source]
References[edit | edit source]
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
