Dibenzothiophenes and Related Compounds. I. Syntheses of 5-Substituted Dibenzothiophenium Salts and 10-Substituted 9, 9-Dimethylthioxanthenium Salts

NITROIMIDAZOLES XI1 [I]: SYNTHESES OF TRISUBSTITUTED PYRAZOLES AND SUBSTITUTED (1 -METHYL-5-NITRO-2- IMIDAZOLYL) PYRIMIDINONES

The reaction of P-diketones 1 with phenyl hydrazine afforded 5-aryl-3-(1- methyl-5-nitro-2-imidazoly1)-1-phenylpyrazole (2) and 3-aryl-5-(1-methyl-5- nitro-2-imidazoly1) -1-phenylpyrazole (3). The reaction of diketones (1) with urea in the presence of p-toluenesulfonic acid gave 4-(or 6-)aryl-6-(or 4-)(1-methyl- 5-nitro-2-imidazolyl)-1-(lH)pyrimidones (4). The structures of all compounds w...

Chemistry of Iminium Salts and Related Compounds

Chemistry of Iminium Salts and Related Compounds

A Methyl Substituted Thiophenic-TTF Donor and its Salts

-methyldithiophene-tetrathiafulvalene (-mDT-TTF), the first alkyl substituted thiophenic-TTF electronic donor, as well as some of its charge transfer salts are reported. The crystal structure of -mDT-TTF is composed of molecular stacks aligned parallel to each other. Its cyclic voltammetry shows higher electron donor ability than the unsubstituted analogue -DT-TTF. This material has been em...

SYNTHESES, ANTIFUNGAL AND ANTIBACTERIAL ACTIVITIES OF SUBSTITUTED 1,2, CTRIMOLES

The reaction of readily available 1 -methyl-4-nitropyrrole-2- carboxylic acid (1) with thionyl chloride afforded the corresponding acyl chloride 2. The reaction of compound 2 with thiosemicarbazides yielded 1-(1 -methyl-4-nitrop yrrole-2-carbony1)- thiosemicarbazides (3) which cyclized in basic medium to 5-(1-methyl-4-nitropyrrole- 2-y1)-2,4-dihydro-3H- l,2,4-triazole-3- thione 4. Alkylatio...