128971-13-1

Basic information

• Product Name: 1-[4-(4-Methoxy-phenyl)-buta-1,3-diynyl]-3,5-bis-trifluoromethyl-benzene
• Synonyms: 1-[4-(4-Methoxy-phenyl)-buta-1,3-diynyl]-3,5-bis-trifluoromethyl-benzene
• CAS NO: 128971-13-1
• Molecular Weight: 368.278
• Mol File: 128971-13-1.mol

Chemical Properties

• CAS DataBase Reference: 1-[4-(4-Methoxy-phenyl)-buta-1,3-diynyl]-3,5-bis-trifluoromethyl-benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-[4-(4-Methoxy-phenyl)-buta-1,3-diynyl]-3,5-bis-trifluoromethyl-benzene(128971-13-1)
• EPA Substance Registry System: 1-[4-(4-Methoxy-phenyl)-buta-1,3-diynyl]-3,5-bis-trifluoromethyl-benzene(128971-13-1)

Safety Data

• Hazardous Substances Data: 128971-13-1(Hazardous Substances Data)

Upstream product

• 328-73-4 3,5-bis(trifluoromethyl)iodobenzene 
• 117635-52-6 5-Hydroxy-5-methyl-1-(4-methoxylphenyl)hexa-1,3-diyne 
• 768-60-5 4-methoxyphenylacetylen 
• 88444-81-9 3,5-bis(trifluoromethyl)phenylacetylene 

Relevant articles and documents

Subnanometer gold clusters on amino-functionalized silica: An efficient catalyst for the synthesis of 1,3-diynes by oxidative alkyne coupling

Subnanometer (d = 0.8 ± 0.2 nm) gold particles homogeneously dispersed on amino-functionalized silica catalyze Glaser-type alkyne coupling, providing corresponding 1,3-diynes under mild conditions. Readily available λ3-iodane PhI(OAc)2 is used as an oxidant and 1,10-phenanthroline is used as an additive. Ten symmetrical 1,3-diynes and three products of heterocoupling containing various functionalities are isolated in high yields. The catalyst can be recycled at least five times, giving consistently high isolated yields and maintaining the size and distribution of gold clusters. This unique combination of stable subnanometer gold clusters and hypervalent iodine thus paves a hitherto unexplored avenue in organic synthesis employing heterogeneous gold catalysis. (Chemical Equation Presented).

PREPARATION AND NONLINEAR OPTICAL PROPERTY OF POLYDIACETYLENES FROM UNSYMMETRICAL DIPHENYLBUTADIYNES WITH TRIFLUOROMETHYL SUBSTITUENTS

In order to obtain the polydiacetylenes having ?-conjugation between polymer backbone and side chains, many of unsymmetrical diphenylbutadiyne derivatives with trifluoromethyl substituents on one of the phenyl rings have been synthesized.Among them, 1-(3-(methylamino)phenyl)-4-(3,5-bis(trifluoromethyl)phenyl)butadiyne (MADF) was found to be topochemically polymerized with complete conversion into the polymer single crystals.Spectroscopies and X-ray crystal structure analysis revealed that the ?-conjugation of this polymer are more extended than those of the sofar prepared poly(diphenylbutadiyne)s, with smaller dihedral angles between ?-conjugation planes of polymer backbone and phenyl rings.The extended ?-conjugation was also confirmed by larger χ(3) values.