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Über die Umsetzung von 3‐Chlor‐1,2‐benzisothiazolium‐chloriden mit N ‐Mono‐ und N , N ‐Dialkylanilinen
Author(s) -
Böshagen Horst,
Geiger Walter
Publication year - 1979
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19791120924
Subject(s) - chemistry , medicinal chemistry , halide , alkyl , yield (engineering) , ring (chemistry) , cleavage (geology) , alkali metal , polymer chemistry , organic chemistry , materials science , geotechnical engineering , fracture (geology) , engineering , metallurgy
Reaction of 3‐Chloro‐1,2‐benzisothiazolium Chlorides with N ‐Mono‐ and N,N ‐Dialkylanilines 3‐Chloro‐1,2‐benzisothiazolium chlorides 1 react with N ‐mono‐ and N,N ‐dialkylanilines 2 to give the 3‐phenylisothiazolium salts 3 . These thermally split off alkyl halides to yield the 3‐phenyl‐isothiazoles 4 . On treatment with alkali the salts 3 are transformed into the benzophenones 7 via ring cleavage.