ChemInform Abstract: Green Chemistry in Organic Synthesis

Synthesis of S‐ and N‐Functionalized Dithiocarbamates from Cyclic Sulfates

“…The results described above on the use of cyclic sulfates as suitable precursors for the preparation of functionalized DTCs demonstrate not only the benefits of this new approach with respect to the effectiveness and versatility of the methodology but also some of the green characteristics37 of the procedure such as its atom economy, the possibility of performing the reactions in a multistep, one‐pot procedure (Method B), and the use of MeOH as an environmentally preferable solvent 38…”

Ecofriendly and Facile One‐Pot Multicomponent Synthesis of 5‐Phenyl‐5,10‐dihydropyrido[2,3‐d : 6,5‐d′]dipyrimidine‐2,4,6,8(1H,3H,7H,9H)‐tetraone Derivatives Catalyzed by CuII Immobilized on Functionalized Magnetic Mesoporous MCM‐41 (Fe3O4@MCM‐41‐GPTMS‐Gu‐CuII)

“…further examined for the one-pot multicomponent reaction of aliphatic aldehydes with barbituric acid and ammonium acetate ( Table 3, (4 a, 4 b, 4 d, 4 e, and 4 g-m) were known, and their structures were confirmed by comparing their physical data (color and melting points) with those of authentic compounds which have been reported in the literature. The structure of the novel synthesized compounds (4 c, 4 f, 4 n, and 4 o) and some of the selected products were further recognized by FT-IR, 1 HNMR, and 13 CNMR spectroscopy and mass spectrometry as well. The elemental analysis technique was also employed for further characterization of the novel synthesized compounds.…”

“…Nowadays, this strategy, which generally leads to higher economic growth, elimination of hazardous substances, saving energy, protection of the environment, better use of resources, and also waste management, is of great importance among researchers due to the spread of pollution in the world. [1] The construction of new substances and syntheses and the emerging technologies are among the achievements of the current strategy and its continuous advances. In this sense, the rational and efficient designing of new heterogeneous catalysts is one of the fundamental pillars of modern organic synthesis, which opens a new window to achieving greener reaction protocols and thus pursues the green chemistry goals.…”

Novel Hemicyanine and Aza-Hemicyanine Dyes: Synthesis, Spectral Investigation and Antimicrobial Evaluation

“…It is also a very important fluorescence dyes applied in lasers, molecular electronics and nonlinear optical photolimiting devices. Besides, hemicyanine dyes (Huang et al, 2002;Antonious, 1997;Kabatc, 2006;Huang, Coull, 2008;Deligeorgiev et al, 2010;Shim, 2009;Jedrzejewska, 2010;Mishra, 2000;Vasilev, 2008;Shindy, 2015;Li et al, 1998) have a number of good properties, such as ease of synthesis, they are fluorescent, have higher photostability than the classical cyanine dyes and they can cover the spectrum from the UV to near infrared (NIR) region. So, in this manuscript we prepared different series of hemicyanine and aza-hemicyanine dyes as new synthesis contribution, spectroscopic investigation and antimicriobial evaluation in this field to may be used and/or applied in any of the wide distributed multidisciplinary uses and application of cyanine dyes, and particularly as sensitizers in manufacturing technology of photosensitive material industry and/or as batericidals in pharmacology and pharmaceutical industry.…”