Synthesis and Crystal Structure of Charge Transfer Complex (CTC) of 2-Aminobenzothiazole with Its Schiff Base

Quantification of silver in several samples using a new ionophore polymer membrane as an optical sensor

“…The formation of the Schiff base was indicated by the absence of C]O and NH 2 peaks from the spectrum of the ligand. 30 Silver ions react with BTMP in basic media at pH 8.5 to form a 1 : 1 (Ag : BTMP) complex in aqueous media containing methanol (40%) (V V À1 ). Consequently, the addition of suitable amounts of Ag + to a methanol solution of BTMP led to a rapid change in the absorption spectrum of the solution, changing the color from yellow to reddish-orange, and showed an absorption band at 386 nm for BTMP, whereas for its complex with 1.0 Â 10 À3 M of Ag + , l max was at 520 nm (Scheme1).…”

Design, Synthesis, and Biological Evaluation of 4‐Phenoxyquinoline Derivatives Containing Benzo[d]thiazole‐2‐yl Urea as c‐Met Kinase Inhibitors

“…Addition reactions of the commercially available anilines with NH 4 SCN were achieved in acetic acid by adding Br 2 dropwise at a temperature lower than 10°C. The reaction was continued for 2 h after the adding of Br 2 and another 1 h was conducted at room temperature to yield intermediates 21a – j . Subsequently, intermediates 21a – j reacted with phenyl chloroformate in THF under basic conditions (pyridine) to provide 22a – j .…”

Benzothiazole carbamates and amides as antiproliferative species

“…synthesis of aminobenzothiazole core. 30 After submitting aminobenzothiazoles to further derivatization with different alkyl chloroformates, the target carbamate derivatives (24 -26 and 28 -37) were obtained in 19 -62% yield.…”