Organic Chemistry Synthesis Methods

In this study, 4,6-dimethylbenzofurans were synthesized via the conden­sation reaction of 3,5-dimethylphenol with various α-bromoa­cetophenone derivatives in the presence of Al2O3. The resulting dimethylbenzofurans were then subjected to a Vilsmeier-Haack reaction, leading to selective formylation at the C3 position.…

In this study, 4,6-dimethylbenzofurans were synthesized via the conden­sation reaction of 3,5-dimethylphenol with various α-bromoa­cetophenone derivatives in the presence of Al2O3. The resulting dimethylbenzofurans were then subjected to a Vilsmeier-Haack reaction, leading to selective formylation at the C3 position.…

Two new quinoline-4-carboxylic acid derivatives were obtained through the classical Pfitzinger reaction using two structurally different β-dicarbonyl compounds. The molecular structures of the obtained compounds were verified using 1H NMR, 13C NMR, FT-IR, and HR-ESI-MS spectroscopic techniques. Spectroscopic data show…

In this study, 4,6-dimethylbenzofurans were synthesized via the conden­sation reaction of 3,5-dimethylphenol with various α-bromoa­cetophenone derivatives in the presence of Al2O3. The resulting dimethylbenzofurans were then subjected to a Vilsmeier-Haack reaction, leading to selective formylation at the C3 position.…

• HAKAN KANDEMİR

Structural and electronic studies on our previously synthesized 4a–4d were conducted at the B3LYP/6-31G(d,p) computational level. IR and NMR spectra for 4a-4d were calculated. The frontier molecular orbitals and molecular electrostatic potential map of compounds 4a–4d were calculated to further speculate on the electr…

• SULTAN ERKAN

Dünyada yaşanan son gelişmeler tekrar Avrupa ve İslam dünyasının dinamiklerini hatırlatmıştır. Bu alanda çalışmalar yapılmış ve yapılmaya da devam etmektedir. Kaygan bir zemin üzerindeki ilişkiler siyasi konjonktüre göre şekillenmiş ve bilimsel çalışmalara da yansımıştır. Bu çalışmalar farklı zamanlarda farklı amaçlar…

Politics has always been important for civilized societies. It is an amazing tool for rulers aiming to manipulate the masses by the sole magic of words. Thus, the power of language is the most helpful and efficient way of implementing political goals and revealing specific ideologies. The aspect of internationality in…

• DOLUNAY KUMLU

Abstract A convenient method for the preparation of halo‐bicyclic molecules likely to show biological activity, from ketene addition reaction with dimethyl cyclohexa‐1,4‐diene‐1,2‐dicarboxylate ( 3 ) and dichloroketene, respectively, under ultrasound irradiation, is reported. First, Dimethyl cyclohexa‐1,4‐diene‐1,2‐di…

• GÜLŞAH TOLLU
• NERMİN ŞİMŞEK KUŞ

Abstract A convenient method for the preparation of halo‐bicyclic molecules likely to show biological activity, from ketene addition reaction with dimethyl cyclohexa‐1,4‐diene‐1,2‐dicarboxylate ( 3 ) and dichloroketene, respectively, under ultrasound irradiation, is reported. First, Dimethyl cyclohexa‐1,4‐diene‐1,2‐di…

• EDA ÖNDÜL KOÇ
• GÜLŞAH TOLLU

Düşmüş bütün ruhların başlangıçtaki orijinal saf akıl konumlarına geri dönmeleri şeklinde tanımladığı apokatastasis doktrini Origen’in teolojik öğretileri arasında önemli bir örnektir. Ancak bu doktrin onun teolojisinin en tartışmalı konularından da biridir. Zira sonun başlangıca benzemesi gerektiğine inanan Origen, b…

• NADİDE ŞAHİN

Bu makale, Geç Antik Çağ ve Orta Çağ’da storaks ismi verilen reçine üzerinedir. Styrax officinalis L.’den (İng. snowbell, Tr. tesbih / ayı fındığı) elde edilen, sert ve altın rengi olan ve bu yüzden “katı storaks” diye adlandırılan bir türün yanında, Liqudambar orientalis Mill.’den (İng. oriental sweetgum, Tr. sığla /…

• ŞEVKİ KORAY DURAK

Bu çalışmada daha önce sentezlenen eksenel ([3- (dimetilamino) fenoksi] propanooksi) ve ([3- (dietilamino) fenoksi] propanooksi) ikameli silisyum ftalosiyaninlerin (DM-C3-Si ve DE-C3-Si) biyolojik aktivitelerinin [sığır karbonik anhidraz (bCA) inhibisyonu, antioksidan ve antibakteriyel] değerlendirilmesi amaçlandı. CA…

• VOLKAN ÇAKIR