Herein we wish to report a new protocol for the bis-indol derivatives synthesis by using a (10 mol% of sodium iodate and sodium hydrogen sulfite) in water.
Table-2: Different mol% of sodium iodate and sodium hydrogen sulfite comparison and their effect on compound 5 yields.
Sodium hydrogen sulfite and sodium iodate solutions (10 mol% 0.
Here, calcium iodate from open pit mines is converted to sodium iodate
which yields iodine upon reaction with sulphur dioxide.
Experiments performed by the author with sodium iodate
revealed that the iodate molecule, because it is larger in size than iodide, did not have any appreciable effect on the electromotive force (EMF) of the electrode, even at concentrations 10,000 times higher than the amount of iodide influencing significantly the EMF of the selective electrode.