e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Synthesis of ethyl ortho-substituted benzoylacetates and investigation of the influence of ortho-substituents on keto-enol tautomerism and MS fragmentation behaviour
D Sicker, G Mann
Index: Collection of Czechoslovak Chemical Communications, , vol. 53, # 4 p. 839 - 850
... However, the recent literature shows a persisting interest in the ~-keto ester chemistry. This ... the Collection Czechoslovak Chem. Commun. (Vol. 53) (1988) Page 6. 844 Sicker, Mann: ... standard. Chemical shifts are given in the o-scale. ...