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 sikerGreen Synthesis of Quinoxaline and Substituted Quinoxalines| Abstract

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Abstract

Green Synthesis of Quinoxaline and Substituted Quinoxalines

Author(s): S. S. Ubarhande, P. P. Devhate and B. N. Berad

One pot green synthesis for quinoxaline and substituted quinoxalines has been developed using environmental friendly technique of microwave assisted synthesis. The quinoxaline itself (3g) and numerous other substituted qunoxalines (3a-3f) have been synthesized by using the condensation reaction of o-phenylenediamine and glyoxal, ethylene glycol, oxalic acid, glycolic acid, chloroacetic acid, benzil and benzoin, respectively. These have been synthesized in microwave after irradiation for 60 seconds at 160 watts. The granular solids obtained were crystallized from ethanol, while quinoxaline itself was purified by distillation. All the quinoxalines, barring (3a) and (3f), all other have been converted into their monoacetyl and monobenzoyl derivatives by treating them with acetic anhydride and benzoyl chloride in 1 : 1 proportion, respectively. The structural determination of different quinoxalines and their derivatives were established on the basis of elemental analysis and spectral data including IR, PMR and Mass spectra.


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