1540-80-3 Usage
General Description
1,8-Cyclotetradecadiyne is a chemical compound with a molecular formula C14H20. It is a cyclic diacetylene molecule, consisting of a 14-carbon ring with two triple bonds. 1,8-Cyclotetradecadiyne is known for its unique property of undergoing a color change from red to blue when exposed to UV light, making it useful in various applications such as photochromic materials, sensors, and optical devices. 1,8-Cyclotetradecadiyne has potential in the development of advanced materials and has been the subject of research in the field of organic chemistry and materials science. However, its use is limited due to its instability and susceptibility to degradation upon exposure to air, moisture, or light.
Check Digit Verification of cas no
The CAS Registry Mumber 1540-80-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,4 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1540-80:
(6*1)+(5*5)+(4*4)+(3*0)+(2*8)+(1*0)=63
63 % 10 = 3
So 1540-80-3 is a valid CAS Registry Number.
InChI:InChI=1/C14H20/c1-2-4-6-8-10-12-14-13-11-9-7-5-3-1/h1-5,10-14H2
1540-80-3Relevant articles and documents
An improved synthesis of cyclic dialkynes
Gleiter,Merger,Treptow,Wittwer,Pflasterer
, p. 558 - 560 (1993)
An improved synthesis of 1,7-cyclododecadiyne 17 (35%), 1,7-cyclotridecadiyne 18 (65%), 1,8-cyclotetradecadiyne 19 (85%), 1,8-cyclopentadecadiyne 20 (65%), 1,9-cyclohexadecadiyne 21 (55%), 1,10-cyclooctadecadiyne 22 (48%) and 1,12-cyclodocosadiyne 23 (27%) is reported. This is achieved by treating the dilithium salts of diterminal dialkynes with α,ω-dihalogenides. As side products, tetraynes are isolated in yields of 1-5%. Furthermore, the synthesis of 6-isopropylidenethiacyclodeca-3,8-diyne (24) and [10]orthocyclophane-2,8-diyne 29 is reported. The reaction of 24 with CpCo(CO)2 yields a [2.2](2,5)thiophenophane derivative 30 while 29 gives an intramolecular cyclobutadiene complex 31.
