119897-95-9Relevant academic research and scientific papers
SYNTHESIS AND REACTIONS OF SOME 2-THIENYL- AND 2-THENOYL-DERIVATIVES OF THIAZOLE AND THIADIAZOLINE AND THEIR SELENIUM ANALOGS
Farag, Ahmed M.,Hassaneen, Hamdi M.,Abbas, Ikhlas M.,Shawali, Ahmad S.,Algharib, Mohamad S.
, p. 243 - 250 (2007/10/02)
2-(Thiocyanatoacetyl)thiophene 2 and its selenium analog 3 couple with diazotized anilines and yield 3-aryl-2-imino-5-(2-thenoyl)-2,3-dihydro-1,3,4-thiadiazoles 6 and 3-aryl-2-imino-5-(2-thenoyl)-2,3-dihydro-1,3,4-selenadiazoles 7 respectively.The reactions of both 6 and 7 with nitrous acid, acetic anhydride and benzoyl chloride are described.Azo coupling of 2-amino-4-(2-thienyl)thiazole 17 and its selenazole analog 18 with diazotized anilines yielded the arylazo derivatives 19 and 20 respectively.Reaction of the hydrazidoyl bromide 16 with potassium thiocyanate, potassium selenocyanate, thiourea and selenourea 6, 7, 19, and 20 respectively.
REACTIONS WITH HYDRAZIDOYL HALIDES II : SYNTHESIS AND REACTIONS OF 2-BROMOTHIENYLGLYOXAL-2-PHENYLHYDRAZONE
Abdelhamid, Abdou O.,Shiaty, Fathia H. H. El
, p. 45 - 50 (2007/10/02)
2-Bromoacetylthiophene reacted with dimethylsulfide in ethanol to afford dimethylsulfonium bromide 2, which reacted with N-nitrosoacetanilide to give 2-bromo-thienylglyoxal-2-phenylhydrazone (3). 3 reacted with pyridine and with triphenylphosphine to give
