Preparation and Characterization of Sterically Hindered Dipyridil Pyrazine Derivatives 

摘要

With the intention of ultimately making a transition metal-­‐‑ containing helicene, the di-­‐‑N-­‐‑oxide of 2,3-­‐‑bis(3-­‐‑methylpyridin-­‐‑2-­‐‑yl) pyrazine was produced from 2,3-­‐‑lutidiene over a series of eight reactions. 1HNMR of intermediate products confirmed the expected structures and showed that each was sufficiently purified.