Safety of 4,4′-Dibromobiphenyl. I found the field of Chemistry very interesting. Saw the article 2,5-Dihydroxyterephthalic Acid Accelerated Cu(NO3)(2)center dot 3H(2)O-Catalyze Homocoupling Reaction of Arylboronic Acids published in 2020, Reprint Addresses Ma, MY (corresponding author), East China Univ Technol, Jiangxi Prov Key Lab Polymer Micro Nano Mfg & Dev, Nanchang 330013, Jiangxi, Peoples R China.. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl.
A catalyst system derived from commercially available Cu(NO3)(2)center dot 3H(2)O and 2,5-dihydroxyterephthalic acid is applied to the homocoupling reaction of arylboronic acids. This transformation provides a convenient approach to symmetrical biaryls with good to excellent yields (39%95%), and exhibits good functional group compatibility. Furthermore, biaryl can be prepared in gram quantities in good yield.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem