Meisenheimer salts. II. Stabilities and spectra of some metal methoxide adducts with anisoles
1968; CSIRO Publishing; Volume: 21; Issue: 5 Linguagem: Inglês
10.1071/ch9681267
ISSN1445-0038
AutoresJE Dickeson, LK Dyall, VA Picles,
Tópico(s)Synthesis and Reactions of Organic Compounds
ResumoN.m.r. spectral studies demonstrated that Meisenheimer salts were formed by addition of alkali metal methoxides to 4-cyano-2,6-dinitroanisole, 4-methoxy-3,5-dinitropyridine, and 2,6-dinitroanisole, but not with 2-methoxypyrimidine. Crystalline salts were isolated after addition of methoxide to the cyanodinitroanisole and methoxydinitropyridine. The stabilities of the Meisenheimer salts were found to be heavily dependent on the ability of ring substituents to accept negative charge.
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