647851-32-9

Upstream product

• 2789-89-1 1,2-bis(4-bromophenyl)acetylene 
• 944-32-1 1-trimethylsilyl-(4-trimethylstannyl)benzene 
• 17865-11-1 (4-(trimethylsilyl)phenyl)boronic acid 
• 17908-91-7 (4′-bromobiphenyl-4-yl)(trimethyl)silane 
• 994-71-8 bis(tributylstannyl)acetylene 

Relevant academic research and scientific papers

Symmetric diarylacetylenes: One-pot syntheses and solution photoluminescence

Bis(tri-n-butylstannyl)acetylene was synthesized and used to create a series of symmetric diarylacetylenes via a one-step Stille coupling protocol with Pd(PPh3)4 as the catalyst. In many cases, the product simply crystallized in good yields from the reaction mixture upon cooling after reflux at 100 °C or upon removal of solvent. The diarylacetylenes were studied using UV-vis and fluorescence spectroscopies, which showed that naphthyl- and biphenyl-substituted acetylenes had very high solution-state fluorescence quantum yields.

Synthesis of Polyphenylene Dendrimers Related to "Cubic Graphite"

Four large, 6-fold symmetric, polyphenylene hydrocarbons have been prepared by short syntheses that chiefly employed alkyne trimerization, palladium-catalyzed coupling, and Diels-Alder reactions. The two largest of these molecules, hexakis[4′-(pentaphenyl

Hexakis(4-iodophenyl)-peri-hexabenzocoronene - A Versatile Building Block for Highly Ordered Discotic Liquid Crystalline Materials

Hexakis (4-iodophenyl)-peri-hexabenzocoronene (5), a novel functionalizable mesogenic building block, was prepared by rational multistep synthesis. Although sparingly soluble in common solvents, it can be obtained in pure form and then functionalized via

The Versatile Synthesis and Self-Assembly of Star-Type Hexabenzocoronenes

An insoluble disclike building block hexa(4-iodophenyl)-peri-hexabenzocoronene (see picture) was synthesized in an efficient way, and subsequent functionalization led to a series of soluble, star-type hexabenzocoronenes (HBCs), all showing remarkable self-assembly behavior: 1) highly ordered liquid-crystalline materials, 2) dendronized HBCs, and 3) triarylamine-substituted HBCs.