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Upstream product

• 1199-95-7 1-(trimethylstannyl)-2-phenylethyne 
• 301831-67-4 1,8-diiodoocta-1,3,5,7-tetrayne 
• 1046809-02-2 C₅₆H₄₈F₂Si₂ 
• 835874-29-8 (6,6-dibromo-5-phenyl-hex-5-ene-1,3-diynyl)-trimethyl-silane 
• 256392-16-2 (6-phenyl-hexa-1,3,5-triynyl)-trimethyl-silane 
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• 37166-48-6 Phenyl-trimethylsilyl-butadiin-keton 
• 17814-74-3 1-phenyl-1,3,5-hexatriyne 

Relevant academic research and scientific papers

An iterative method for the synthesis of symmetric polyynes

An iterative synthetic route for obtaining symmetric polyynes was developed, consisting of a series of iodination and Stille coupling reactions. The starting materials employed in this pathway are simple and can be prepared easily. Polyynes containing up to seven Ca=C bonds were synthesized using this method. This route is particularly effective for accessing polyynes with an odd number of Ca=C bonds and has allowed for the synthesis of a new iodine-capped polyyne, diiododecapentayne. Copyright

β-Halovinylsilanes in oligoyne synthesis: a fluoride-catalysed unmasking of alkynes from β-fluorovinylsilanes

A stereoselective halodestannylation of (E)-β-stannylvinylsilane 6 has been used to access a range of (E)-β-halovinylsilanes. Most notably, the β-fluorovinylsilane 14 was accessed in high yield using the Selectfluor reagent, and subsequently converted into a masked hexayne 22. Release of the hexayne 25 was achieved by exposing 22 to sub-stoichiometric quantities of fluoride.

Novel approach to stabilize unstable molecular wires by simultaneous rotaxane formation - Synthesis of inclusion complexes of oligocarbynes with cyclic host molecules

An effective method to stabilize oligocarbynes as a model for polycarbyne by the simultaneous complexation with α-cyclodextrin (α-CD) is described. 1,12-Bis(9-phenanthryl)-1,3,5,7,9,11-dodecahexayne possessing one or two α-CD molecules was prepared by the

β-Chlorovinylsilanes as masked alkynes in oligoyne assembly: Synthesis of the first aryl-end-capped dodecayne

An aryl-end-capped dodecayne has been prepared using a four-fold fluoride-mediated dechlorosilylation of a masked dodecayne precursor containing four β-chlorovinylsilane residues that serve as masked alkynes; the unstable dodecayne product has been charac

Synthesis, structure, and nonlinear optical properties of diarylpolyynes

(Chemical Equation Presented) A series of α,ω-diarylpolyynes has been synthesized. In addition to the synthesis of three hexaynes (3a-c), a notably improved synthesis of 1,16-diphenylhexadecaoctayne (5) is described. The third-order nonlinear optical char