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Morteza Rouhani,Ali Ramazani,주상우,요네스피로즈살라리 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.12
We report a fast, efficient, and facile route for the synthesis of 2,5-dihydro-5-imino-2-methylfuran-3,4- dicarboxylate derivatives from the isocyanide, dialkyl acetylenedicarboxylate and acetic anhydride under ultrasound-assisted conditions. Utilization of easy reaction conditions, very high to excellent yields, and short reaction times makes this manipulation potentially very useful.
Rouhani, Morteza,Ramazani, Ali,Joo, Sang Woo,Hanifehpour, Younes Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.12
We report a fast, efficient, and facile route for the synthesis of 2,5-dihydro-5-imino-2-methylfuran-3,4-dicarboxylate derivatives from the isocyanide, dialkyl acetylenedicarboxylate and acetic anhydride under ultrasound-assisted conditions. Utilization of easy reaction conditions, very high to excellent yields, and short reaction times makes this manipulation potentially very useful.
Seyyed Mohammad Ghodsi,Reza Rouhani,Sina Abdollahzade,Masoud Khadivi,Morteza Faghih Jouibari 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.5
Study Design: Prospective cohort study. Purpose: In this study, we investigated the frequency of vertebral endplate Modic changes (MCs) and their effects on surgical outcomes in patients with unstable lumbar spines. Overview of Literature: Signal changes in endplates have been classified into three types by Modic. The prognostic role of MCs has been investigated in various spinal disorders. Methods: A series of 70 patients with clinical and radiographic unstable lumbar spine were included in the study. Endplate signal intensity was determined according to Modic classification. All patients underwent instrumented posterolateral fusion. Functional evaluation was made using the visual analog scale (VAS) and Oswestry disability index (ODI). Results: Eighteen patients (26%) had normal endplate intensity, 31 patients (44%) had MC type I, 20 patients (28%) had MC type II, and one patient (1.4%) had MC type III. Pain level VAS and ODI decreased significantly from the preoperative evaluation to the sixmonth and one-year postoperative evaluations. The surgical outcome (VAS and ODI) was not significantly different between the various types of MC. Conclusions: Posterolateral fusion is an effective treatment in patients with unstable lumbar spines. MC do not have a significant effect on the surgical outcome of these patients.
Ali Ramazani,Fatemeh Zeinali Nasrabadi,Zahra Karimi,Morteza Rouhani 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.8
The 1:1 imine intermediate generated by the addition of primary amine to chloroacetone is trapped by Nisocyaniminotriphenylphosphorane in the presence of (E)-cinnamic acids and the corresponding iminophosphorane intermediate was formed. Disubstituted 1,3,4-oxadiazole derivatives are formed via intramolecular aza-Wittig reaction of the iminophosphorane intermediate. The reactions were completed in neutral conditions at room temperature. The disubstituted 1,3,4-oxadiazole derivatives were produced in excellent yields.
Ramazani, Ali,Nasrabadi, Fatemeh Zeinali,Karimi, Zahra,Rouhani, Morteza Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.8
The 1:1 imine intermediate generated by the addition of primary amine to chloroacetone is trapped by N-isocyaniminotriphenylphosphorane in the presence of (E)-cinnamic acids and the corresponding iminophosphorane intermediate was formed. Disubstituted 1,3,4-oxadiazole derivatives are formed via intramolecular aza-Wittig reaction of the iminophosphorane intermediate. The reactions were completed in neutral conditions at room temperature. The disubstituted 1,3,4-oxadiazole derivatives were produced in excellent yields.
Ramazani, Ali,Nasrabadi, Fatemeh Zeinali,Abdian, Behnaz,Rouhani, Morteza Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.2
Reactions of (N-isocyanimino)triphenylphosphorane with (1R)-(-)-campherchinon in the presence of aromatic carboxylic acids proceed smoothly at room temperature and in neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives in high yields. The reaction proceeds smoothly and cleanly under mild conditions and no side reactions were observed.
Ali Ramazani,Fatemeh Zeinali Nasrabadi,Behnaz Abdian,Morteza Rouhani 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.2
Reactions of (N-isocyanimino)triphenylphosphorane with (1R)-(.)-campherchinon in the presence of aromatic carboxylic acids proceed smoothly at room temperature and in neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives in high yields. The reaction proceeds smoothly and cleanly under mild conditions and no side reactions were observed.