851015-43-5

Basic information

• Product Name: Benzoic acid, 3,4-bis(phenylethynyl)-
• CAS NO: 851015-43-5
• Molecular Formula: C23H14O2
• Molecular Weight: 322.363
• Mol File: 851015-43-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 3,4-bis(phenylethynyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 3,4-bis(phenylethynyl)-(851015-43-5)
• EPA Substance Registry System: Benzoic acid, 3,4-bis(phenylethynyl)-(851015-43-5)

Safety Data

• Hazardous Substances Data: 851015-43-5(Hazardous Substances Data)

Upstream product

• 536-74-3 phenylacetylene 
• 51329-16-9 3,4-dibromobenzoic acid methyl ester 
• 1351488-99-7 methyl 3,4-bis(2-phenylethynyl)benzoate 
• 851015-42-4 3,4-bis-phenylethynyl-benzoic acid tert-butyl ester 

Downstream Products

• 1351489-02-5 2-(acryloyloxy)ethyl 3,4-bis(2-phenylethynyl)benzoate 
• 851015-44-6 [2-(3,4-bis-phenylethynyl-benzoylamino)-ethyl]-carbamic acid tert-butyl ester 
• 851015-45-7 N-(2-amino-ethyl)-3,4-bis-phenylethynyl-benzamide 

Relevant articles and documents

A convergence of photo-bergman cyclization and intramolecular chain collapse towards polymeric nanoparticles

Employing enediynes as crosslinking precursors, a novel yet efficient strategy, namely photo-triggered Bergman cyclization, was integrated with intramolecular chain collapse to yield polymeric nanoparticles with the size regime below 20 nm. Enediyne motif was designed delicately to possess a high photo-reactivity, with the double bond locked in a methyl benzoate ring while triple bonds substituted with phenyls. Single electron transfer-living radical polymerization was conducted to provide linear acrylate copolymers with controlled molecular weights and narrow polydispersities. Poly(butylarylate-co- 5) went through UV-irradiation with a concurrent Bergman cyclization, resulting in well-defined ultrafine polymeric nanoparticles. Results from NMR, Raman scattering, photoluminescence and UV-vis spectra corroborated the presence of conjugative structures in the polymeric nanoparticles, indicating the occurrence of photo-induced Bergman cyclization. A series of other acrylate-based nanoparticles were investigated to confirm the applicability of such a unique strategy in thermal sensitive but UV-stable polymeric structures, making photo-Bergman cyclization a promising tool towards polymeric nanoparticles.