The reaction of triphenylsilyllithium with halogenated heterocycles waa investigated employing different heterocycles and varying the halogen, solvent, and time of reaction. The results indicate that the reaction of triphenylsilyllithium with Ar-X compounds varies appreciably with the nature of the halogen and solvent. The triphenylsilyl group waa introduced into the various nuclear positions of 10-ethylphenothiazine. Several other new ...
