How can I know the synthesized compound is new compound,please?
How can I synthesis new compound?
Can you provide more background information on your aim? There is a vast amount of chemistry literature on the synthesis of compounds and theoretical compounds that have yet to be created in the laboratory. Taking your question at face value, one may check to see if anyone has reported the synthesis of a given compound by searching a database like SciFinder. As for your second question, you may wish to contact the leading researchers in your field of interest to learn what approaches they are taking towards the synthesis of new compounds.