81056-05-5

Upstream product

• 99-90-1 para-bromoacetophenone 
• 873415-22-6 2,3-dibromo-2,3-bis-(4-bromo-phenyl)-butane 
• 64-19-7 acetic acid 

Downstream Products

• 16483-42-4 meso-2.3-bis-(4-bromo-phenyl)-butane 
• 873415-47-5 2-bromo-2,3-bis-(4-bromo-phenyl)-butane 
• 873415-22-6 2,3-dibromo-2,3-bis-(4-bromo-phenyl)-butane 
• 63539-56-0 meso-α.α'-dimethyl-bibenzyl-dicarbonitrile-(4.4') 
• 81056-03-3 2,3-bis-(4-bromophenyl)-2-butene 

Relevant academic research and scientific papers

Preparation of new poly(phenylene vinylene) type polymers by Ni-promoted polycondensation and their photoluminescent properties

Poly(p-phenylene vinylene) type polymers having biphenyl-4,4'-diyl units have been prepared by organometallic polycondensation. They are photoluminescent and electrochemically active, and are considered to take a stacked and liquid crystalline structure depending on the substituent.

Synthesis and properties of covalently linked di-p-benzihomoporphyrin-BODIPY conjugates

Two mono meso-functionalized [20]di-p-benzihomoporphyrins containing p-formylphenyl and p-iodophenyl groups at meso-position respectively were synthesized by condensing one equivalent of appropriate tetrapyrrane with one equivalent of p-formyl benzaldehyde/p-iodo benzaldehyde in CH2Cl2 under mild acid catalyzed conditions. The meso-formylphenyl and meso-iodophenyl functionalized di-p-benzihomoporphyrins were used to synthesize two covalently linked di-p-benzihomoporphyrins-BODIPY conjugates. The meso-formylphenyl-functionalized di-p-benzihomoporphyrin was converted to corresponding meso-dipyrrolyl substituted di-p-benzihomoporphyrin by treating with excess pyrrole under acid catalyzed conditions. In the next step, the meso-dipyrrolyl di-p-benzihomoporphyrin was subjected to oxidation followed by BF2 complexation to afford the directly linked di-p-benzihomoporphyrin-BODIPY conjugate. The meso-iodophenyl functionalized di-p-benzihomoporphyrin was coupled with ethynyl-functionalized BODIPY under mild Pd(0) coupling condition to synthesize diphenylethyne-bridged di-p-benzihomoporphyrin-BODIPY conjugate. The two conjugates were characterized by HR-MS, NMR, absorption, electrochemical, fluorescence and DFT studies. The spectral and electrochemical studies indicated that the two constituents, di-p-benzihomoporphyrin and BODIPY units in the conjugates interact weakly and retain their individual characteristic features. DFT studies indicated a possibility of charge transfer between di-p-benzihomoporphyrin and BODIPY units in conjugates.