6326-64-3Relevant articles and documents
ELECTROCHEMICAL FORMATION OF 1,3,5-TRI-(p-BIPHENYL)BENZENE PENTAANION
Saji, Tetsuo,Aoyagui, Shigeru
, p. 983 - 984 (1981)
The cyclic voltammogram of 1,3,5-tri(p-biphenyl)benzene in 0.2 M (M=mol dm-3) TBAP-DMeE at -50 deg C exhibits five reversible one-electron steps.This may be evidence for the electrochemical formation of mono-, di-, tri-, tetra- and pentaanions
DBSA catalyzed cyclotrimerization of acetophenones: An efficient synthesis of 1,3,5-triarylbenzenes under solvent-free conditions
Prasad, Davinder,Preetam, Amreeta,Nath, Mahendra
, p. 252 - 256 (2013/05/08)
A facile method for the synthesis of 1,3,5-triarylbenzenes is developed via cyclotrimerization of acetophenones in the presence of 4-dodecylbenzenesulfonic acid (DBSA) as an efficient Bronsted acid catalyst under solvent-free conditions. This synthetic pr
Palladium nanoparticles immobilized on nano-silica triazine dendritic polymer (Pdnp-nSTDP): An efficient and reusable catalyst for suzuki-miyaura cross-coupling and heck reactions
Isfahani, Amir Landarani,Mohammadpoor-Baltork, Iraj,Mirkhani, Valiollah,Khosropour, Ahmad R.,Moghadam, Majid,Tangestaninejad, Shahram,Kia, Reza
supporting information, p. 957 - 972 (2013/05/08)
A new catalyst based on palladium nanoparticles immobilized on nano-silica triazine dendritic polymer (Pdnp-nSTDP) was synthesized and characterized by FT-IR spectroscopy, thermogravimetric analysis, field emission scanning electron microscopy, energy dispersive X-ray, transmission electron microscopy and elemental analysis. The size of the palladium nanoparticles was determined to be 3.1±0.5 nm. This catalytic system showed high activity in the Suzuki-Miyaura cross-coupling of aryl iodides, bromides and chlorides with arylboronic acids and also in the Heck reaction of these aryl halides with styrenes. These reactions were best performed in a dimethylformamide (DMF)/water mixture (1:3) in the presence of only 0.006 mol% and 0.01 mol% of the catalyst, respectively, under conventional conditions and microwave irradiation to afford the desired coupling products in high yields. The Pdnp-nSTDP was also used as an efficient catalyst for the preparation of a series of star- and banana-shaped compounds with a benzene, pyridine, pyrimidine or 1,3,5-triazine unit as the central core. Moreover, the catalyst could be recovered easily and reused several times without any considerable loss of its catalytic activity. Copyright