Fluoroanalogs of DDT: Superacidic BF<sub>3</sub>–H<sub>2</sub>O Catalyzed Facile Synthesis of 1,1,1-Trifluoro-2,2-diarylethanes and 1,1-Difluoro-2,2-diarylethanes
作者:G. K. Surya Prakash、Farzaneh Paknia、Thomas Mathew、Gzregorz Mlostoń、Jens P. Joschek、George A. Olah
DOI:10.1021/ol201669a
日期:2011.8.5
The one-pot synthesis of 1,1,1-trifluoro- and 1,1-difluoro-2,2-diarylethanes from arenes and fluorinated hemiacetals in the BF3-H2O system is described. The reaction is simple, clean, and convenient, eliminating the use of organic solvents and other expensive acid systems. BF3-H2O is economic, is easy to prepare, and offers ample acidity required for this reaction.