Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerSynthesis and Antimicrobial Studies of Substituted Benzo (b) Thiophene and their Derivatives| Abstract

44 7460 854 031

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Abstract

Synthesis and Antimicrobial Studies of Substituted Benzo (b) Thiophene and their Derivatives

Author(s): Vijay Kumar Tirlapur, K. M. K Swamy and Y. Rajendra Prasad

3-Chlorobenzo (b)thiophene-2-carbonyl chloride (1) was prepared when cinnamic acid was refluxed for 48hr with thionyl chloride in chlorobenzene. Compound (1) on stirring with anthranillic acid in pyridine furnished 2-(3’-chlorobenzo (b) thiophene-2’-yl)-3, 1-benzoxazin-4-one (2). Reaction of compound (2) with hydrazine hydrate in dioxane under reflux for 3hr gave 3-amino-2-(3’-chlorobenzo (b) thiophene-2’-yl) quinazol-4-one (3), Compound (2) on refluxing with phenylhydrazine in dioxane for 3hr yielded 3-phenylamino-2-(3’-chlorobenzo (b) thiophene-2’-yl) quinazol-4-one (4). Compound (2) was refluxed with substituted anilines in dioxane for 3hr to gave 3-substituted phenyl-2-(3’-chlorobenzo (b) thiophene-2`-yl) quinazol-4-ones (5), (6), (7), (8) and (9). All newly synthesized compounds were characterized by IR, 1H NMR and mass spectral studies. These compounds were evaluated for their antimicrobial activities.


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