314082-75-2Relevant academic research and scientific papers
Reversible C ? N migration of the ethoxycarbonyl group in the reactions of pyridinium and isoquinolinium ylides derived from malonic ester with isocyanates
Gololobov, Yuri G.,Dovgan, Olga V.,Golding, Igor R.,Petrovskii, Pavel V.,Garbuzova, Irina A.
, p. 36 - 45 (2002)
Pyridinium and isoquinolinium ylides (7 and 12) derived from malonic ester react in an unusual manner with isocyanates giving the new pyridinium ylide (9) and the new isoquinolinium ylide (14). C → N Migration of the COOEt group takes place at room temperature, but, at an elevated temperature, reverse N → C migration of the COOEt group proceeds and ylides 9 and 14 are reconverted into the starting ylides 7 and 12, respectively.
