Propynyl group
{{About|a functional group|the phenethylamine|Propynyl (psychedelic)}}
File:Propargyl.png) group.]]
In organic chemistry, a propynyl group is a propyl bearing a triple bond.{{Citation |last=Colthup |first=Norman B. |title=CHAPTER 6 - TRIPLE BONDS AND CUMULATED DOUBLE BONDS |date=1990-01-01 |url=https://www.sciencedirect.com/science/article/pii/B9780080917405500090 |work=Introduction to Infrared and Raman Spectroscopy (Third Edition) |pages=235–246 |editor-last=Colthup |editor-first=Norman B. |place=San Diego |publisher=Academic Press |language=en |isbn=978-0-12-182554-6 |access-date=2023-01-01 |last2=Daly |first2=Lawrence H. |last3=Wiberley |first3=Stephen E. |editor2-last=Daly |editor2-first=Lawrence H. |editor3-last=Wiberley |editor3-first=Stephen E.}}
- The 1-propynyl group has the structure CH3-C≡C–R.{{Cite journal |last=Morosin |first=B. |last2=Howatson |first2=J. |date=1971-05-16 |title=The crystal structure of dimeric methyl-1-propynyl- beryllium-trimethylamine |url=https://www.sciencedirect.com/science/article/pii/S0022328X00874859 |journal=Journal of Organometallic Chemistry |language=en |volume=29 |issue=1 |pages=7–14 |doi=10.1016/S0022-328X(00)87485-9 |issn=0022-328X|url-access=subscription }}
- The 2-propynyl group is also known as a propargyl group, and has the structure HC≡C−CH2–R.{{Cite journal |last=Crider |first=Paul E. |last2=Castiglioni |first2=Luca |last3=Kautzman |first3=Kathryn E. |last4=Neumark |first4=Daniel M. |date=2009-01-28 |title=Photodissociation of the propargyl and propynyl (C(3)D(3)) radicals at 248 and 193 nm |url=https://pubmed.ncbi.nlm.nih.gov/19191388/ |journal=The Journal of Chemical Physics |volume=130 |issue=4 |pages=044310 |doi=10.1063/1.3067705 |issn=1089-7690 |pmid=19191388}}