YENİ 3-(ALKİLTİYO)-5-(TİYOFEN-2-İLMETİL)-1,2,4-TRİAZOL-4-AMİNLERİN MİKRODALGA SENTEZİ

Öz

Amaç: Bu çalışmanın amacı, Milestone Flexi Wave mikrodalga sentez sistemi ile 3-(alkiltiyo)-5-(tiyofen-2-ilmetil)-1,2,4-triazol-4-aminlerin sentezlenmesi ve sentezlenen bileşiklerin yapısının onaylanmasıdır.

Gereç ve Yöntem: İlk bileşikler 3-(tiyofen-2-ilmetil)-4H-1,2,4-triazol-5-tiyoller (1-5) Zaporizhzhya State Medical Üniversite Toksikolojik ve İnorganik Kimya Anabilim Dalı'nda sentezlendi (Ukrayna). 3-(alkiltiyo)-5-(tiyofen-2-ilmetil)-1,2,4-triazol-4-aminlerin sentezlenmesi için Milestone Flexi Wave mikrodalga sentez sistemi kullanıldı. Sentezlenen bileşiklerin element analizi evrensel analiz Elementar Vario L küpü (CHNS) tarafından yapıldı. ¹H spektrumları (400 MHz ve 100 MHz'de), DMSO-d₆'da bir Varian MR-400 spektrometresi üzerinde kaydedildi ve ADVASP ™ Analyzer programı ile analiz edildi. Reaksiyonlar ve elde edilen bileşikler, bir 5977B kütle spektrometre detektörü ile Agilent 7890B gaz kromatografısinde  kontrol edildi.

Sonuç ve Tartışma: Reaksiyon, 5-(tiyofen-2-ilmetil)-4H-1,2,4-triazol-3-tiyollere katalitik miktarda HCI ilave edilerek alkollü bir ortamda gerçekleştirildi. Alkol olarak metil ve i-propil alkoller kullanıldı.

Karışım, 45 dakika boyunca 150°C sıcaklıkta, 14.4 bar basınçta, ΔMW = 200 W sıcaklıkta ısıtıldı.

Çözücü olarak asetik asit kullanıldı. (4a-b, 6a-j) için önerilen yapı, ¹H NMR sinyalleri ile doğrulandı. Temel kimyasal yapılarını doğrulamak için sentezlenen bileşikler üzerinde element analizi (CHNS) yapıldı ve hesaplanan yüzdelerle kabul edilebilir bir uyum sağladığını gösterdi.

Anahtar Kelimeler

• 1.2.4-triazol
• sentez
• 1H-NMR
• gaz kromatografisi
• heterosiklik bileşikler

MICROWAVE SYNTHESIS OF NEW 3-(ALKYLTHIO)-5-(THIOPHEN2-YLMETHYL)-1,2,4-TRIAZOL-4-AMINES

Öz

Objectives: The purpose of this work is to synthesize N-R-3-(alkylthio)-5-(thiophen-2-ylmethyl)-1,2,4-triazol-4-amines by the Milestone Flexi Wave microwave synthesis system and to prove structure synthesized compounds.

Materials and Methods: The initial compounds 4-R1-3-(thiophen-2-ylmethyl)-4H-1,2,4-triazole-5-thioles (1-5) were synthesized at the Department of Toxicological and Inorganic Chemistry of the Zaporizhzhya State Medical University (Ukraine ). Milestone Flexi Wave microwave synthesis system was used to synthesize N-R-3-(alkylthio)-5-(thiophen-2-ylmethyl)-1,2,4-triazol-4-amines. The elemental analysis of synthesized compounds was established by the universal analyzer Elementar Vario L cube (CHNS). The 1H spectra (at 400 MHz and 100 MHz) were recorded in DMSO-d6 on a Varian MR-400 spectrometer and analysed with ADVASP™ Analyzer program. The completeness of the reactions and the individuality of the resulting compounds were controlled by the gas chromatograph Agilent 7890B with a 5977B mass spectrometry detector.

Result and Discussion: The reaction was carried out in an alcoholic medium by adding a catalytic amount of HCl to 4-R-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazole-3-thiols. Methyl and i-propyl alcohols were used as alcohols. The mixture was heated for 45 minutes at a temperature of 150 ° C, a pressure 14.4 bar, ΔMW = 200 W.

The signals of 1H NMR for (4a-b, 6a-j) are consented with the proposed structure.

The elemental analysis (CHNS) was accomplished for synthesized compounds to confirm their basic chemical structures and revealed acceptable agreement with the calculated percentages.

Anahtar Kelimeler

• synthesis
• 1HNMR
• gas chromatography
• 1.2.4-triazole
• heterocyclic compounds

Teşekkür

We're grateful to the Zaporizhzhia State Medical University for providing some facilities in carrying out the research.

Kaynakça

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