7333-25-7

Usage

Definition

ChEBI: An octadecadiynoic acid having its triple bonds at positions 10 and 12.

Upstream product

• 628-71-7 1-Heptyne 
• 110-53-2 1-Bromopentane 
• 19821-84-2 1-bromohept-1-yne 
• 2777-65-3 undec-10-ynoic acid 

Downstream Products

• 872411-05-7 malonic acid bis-(3,5-bis-octadeca-10,12-diynyloxy-benzyl) ester 
• 872411-03-5 3,5-bis-octadeca-10,12-diynyloxy-benzoic acid methyl ester 
• 872411-04-6 (3,5-bis-octadeca-10,12-diynyloxy-phenyl)-methanol 
• 140458-58-8 4-(10,12-octadecadiynyloxy)-4'-cyanobiphenyl 
• 872411-02-4 10,12-octadecadiynyl p-toluenesulfonate 
• 140458-57-7 4-(10,12-octadecadiynyloxy)-1-nitrobenzene 
• 128937-80-4 1,4-di(octadeca-10,12-diynoyloxy)benzene 
• 129107-79-5 4-(octadeca-10,12-diynoylamino)-1-(octadeca-10,12-diynoyloxy)benzene 
• 128937-88-2 4-(octadeca-10,12-diynoyloxy)benzylidenemalononitrile 
• 128937-86-0 4-(octadeca-10,12-diynoyloxy)benzonitrile 
• 128937-90-6 4-(octadeca-10,12-diynoylamino)phenol 

Relevant academic research and scientific papers

Towards polymerizable fullerene derivatives to stabilize the initially formed phases in bulk-heterojunction solar cells

Photovoltaic cells have been prepared with blends of a polymerizable methanofullerene derivative bearing four butadiyne subunits and MDMO-PPV; annealing at 100°C for 2 hours resulted in an improvement of the performances of the devices and AFM studies sug

Synthesis and Nuclear Magnetic Resonance Studies on a Series of Synthesis Long-chain Tellurophene Fatty Esters

The synthesis and the results of the 1H and 13C NMR spectroscopic analyses of thirteen 2,5-disubstituted tellurophene fatty esters, containing substituents of different chain lengths, and of a monosubstituted tellurophene ester are repported.The tellurophene esters are obtained by cyclization of the corresponding conjugated intermediates with Na2Te in the presence of AgOAc in methanol.The tellurophene moiety in the alkyl chain induces a deshielding effect on the protons of the adjacent methylene prtons.The shift parameters of the tellurophene moiety on the shifts of the adjacent methylene carbon atoms are also determined.

Synthesis and NMR Studies on a Series of Synthetic Long-Chain Selenophene Fatty Esters

A report is given on the synthesis and the results of the 1H and 13C NMR spectroscopic analyses of thirteen 2,5-disubstituted selenophene fatty esters containing substituents of different chain lengths, and a mono-substituted selenophene ester, constituting a set of positional isomers of selenophene fatty esters with the heteroaromatic nucleus at different locations from the carboxylic acid or terminal methyl group.The chemical shift of the protons of the selenophene ring of the ethyl C18 selenophene esters (5-9) appears at δ 6.68.The selenophene nucleus induces a deshielding effect on the protons of the adjacent methylene protons.The carbon chemical shifts of the 2,5-disubstituted selenophene ring carbon atoms appear at about 125 ppm (ring C-3/C-4) and at about 150 ppm (ring C-2/C-5).The selenophene nucleus induces a deshielding effect on the adjacent α- and β-methylene carbon atoms, but a shielding effect on the γ-ε methylene carbon atoms.

REACTION OF DIYNOYL CHLORIDES WITH PARA-SUBSTITUTED PHENOLS

The reaction of diynoyl chlorides with para-substituted phenols was studied.As a result amphiphilic diacetylenic compounds containing an aromatic ring in the chain, which are of interest for the production of Langmuir-Blodgett films, were obtained.