Steric, Conformational, and Electronic Effects as Revealed by Acidities of Substituted Xanthenes and Reactions of Substituted Xanthenyl and Related Carbanions with Benzyl Chloride

Article abstract of DOI:10.1021/jo00161a016

Equilibrium acidities in Me2SO solution for 9-substituted xanthenes (9-G-XnH) with G = H, CN, PhS, PhSO2, CO2Me, and Ar are reported.Comparison of these acidities with those of related compounds, GCH2CN, 9-G-FlH (9-substituted fluorenes), and GCHPh2, show