A number of 3-chloro-l0-dialkylaminoa! kylphe1iothiazines were prepared by condensing 3- chlorophenothiazine with a variety of dialkylaminoalky! chlorides in refluxing toluene using sodamide as the condensing agent, These products are oils which can be distilled in high vacuum and form crystalline salts The preparation of 3-chlorophenothiazine-5-oxide and 3- chlorophenothiazine-5, 5-dioxide also is described; the latter compound was condensed ...
