412342-56-4Relevant academic research and scientific papers
On the mechanism of C ? N migration of alkoxycarbonyl groups in reactions of pyridinium ylides with isocyanates
Gololobov,Kashina,Linchenko,Petrovskii,Gambaryan,Friedrichsen
, p. 2261 - 2266 (2003)
New examples of reversible C ? N migrations of alkoxycarbonyl groups, which occur in the reactions of pyridinium and 3-(diethylcarbamoyl) pyridinium ylides, viz., derivatives of dimethyl and diethyl malonates, with aryl isocyanates were studied. The mecha
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 (2007/10/03)
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.
