Chemical engineers ensure the efficiency and safety of chemical processes, adapt the chemical make-up of products to meet environmental or economic needs, and apply new technologies to improve existing processes. Introduce a common compound, CAS is 78593-33-6, Name is 3-Bromocinnoline, belongs to cinnoline compound. 78593-33-6
Using the same procedure as that described above but from 3-bromocinnoline there was obtained 3-(4-methoxyphenylthio)cinnoline Yield: 74.6% M.P.: 108 C. (isopropanol)
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Reference：
Patent; Sanofi; US4957925; (1990); A;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics