- Improved synthesis of 2,2'-bipyrimidine.
Improved synthesis of 2,2'-bipyrimidine.
The Journal of organic chemistry (2002-08-31)
Gábor Vlád, István T Horváth
PMID12201781
RESUMEN
A high-yield synthesis was developed for the preparation of 2,2'-bipyrimidine (1) using the Ullmann coupling of 2-iodopyrimidine. The new procedure was also used for the preparation of 4,4',6,6'-tetramethyl-2,2'-bipyrimidine (2) and 5,5'-dibromo-2,2'-bipyrimidine (3).
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Sigma-Aldrich
Potassium disulfite, puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide