On resonance interactions in methyl 4-X-benzoates and the effect of 2,6-dimethyl substitution. 13C or 17O NMR chemical shifts as effective indicators of π-electron-density distribution? - Maccagno, Massimo; Mele, Andrea; Musio, Roberta; Petrillo, Giovanni; Sancassan, Fernando; Sciacovelli, Oronzo; Spinelli, Domenico (ARKIVOC, 2009)
doi: 10.3998/ark.5550190.0010.818