1785-53-1 Usage
General Description
2,9-Undecadiyne is a chemical compound with the molecular formula C11H18. It is a colorless liquid with a characteristic odor, and it is insoluble in water but miscible with organic solvents. 2,9-Undecadiyne is commonly used as an intermediate in the synthesis of various compounds, including pharmaceuticals, pesticides, and other organic chemicals. It is also used in the production of polymers and as a precursor to modified hydrocarbons. Additionally, 2,9-undecadiyne is utilized in organic synthesis reactions due to its high reactivity and ability to participate in cross-coupling reactions and other transformations. The compound is considered to be toxic and flammable, and appropriate safety precautions should be taken when handling and storing it.
Check Digit Verification of cas no
The CAS Registry Mumber 1785-53-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,8 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1785-53:
(6*1)+(5*7)+(4*8)+(3*5)+(2*5)+(1*3)=101
101 % 10 = 1
So 1785-53-1 is a valid CAS Registry Number.
InChI:InChI=1/C11H16/c1-3-5-7-9-11-10-8-6-4-2/h7-11H2,1-2H3
1785-53-1Relevant articles and documents
Cyclic Diynes by Alkyne Metathesis
Hellbach, Bjoern,Gleiter, Rolf,Rominger, Frank
, p. 2535 - 2541 (2007/10/03)
The preparation of α,ω-diynes with methyl groups at the termini (11a-i) is described. The methylene groups between the alkyne units vary between n = 12 (a) and n = 4 (i). Ring closing metathesis with Mo(CO) 6/CF3C6H4OH yielded the monocyclic alkyne 12a with 11a as starting material, whereas 11b-g yielded the cyclic diynes 13b-g. Detailed structural parameters were obtained for 13b and 13c by X-ray crystallography.
