Quaternary thiazolium compounds related to aneurine

The major part of this thesis is based on four papers to which the author has contributed, viz. : -1. Uber Aneurin, II. Mitteil.: Uber die Synthese von N- Aryl -thiazoliumsalzen; über Einzelheiten in der Konstitution des Aneurins und Thiochromes. A.R. Todd, F. Bergel und Karimullah. (Ber. 1936, 69, 217)2. 5-Thioformamidopyrimidines. A.R.Todd, F. Bergel and Karimullah. (J. 1936, 1557)3. Thioformylation of Amines. A.R.Todd, F. Bergel, Karimullah and R. Keller. (J. 1937, in press)4. Some substituted phenyl and benzyl thiazolium salts. Karimullah. (Submitted to the British Chemical Society in March 1937)