Adding excessive amounts of trimethylsilyl trifluoromethanesulfonate (Me3SiOTf) and Na to 9 gives a 14% yield of Phn (SiMe3) 2 and this conclusion is also verified
The addition of excess trifluoromethanesulfonate trimethylsilyl ester (me3siotf) and Na into 9 resulted in a 14% yield of PHN (SiMe3) 2, which also confirmed this conclusion<br>