83169-98-6Relevant academic research and scientific papers
A Macrocyclic 1,4-Diketone Enables the Synthesis of a p-Phenylene Ring That Is More Strained than a Monomer Unit of [4]Cycloparaphenylene
Mitra, Nirmal K.,Corzo, Hector H.,Merner, Bradley L.
, p. 3278 - 3281 (2016)
The synthesis of a p-terphenyl-based macrocycle, containing a p-phenylene unit with 42.6 kcal/mol of strain energy (SE), is reported. The conversion of a macrocyclic 1,4-diketone to a highly strained arene system takes place over five synthetic steps, fea
Structural chemistry and anti-inflammatory activity of flexible/restricted phenyl dimers
Singh, Ved Prakash,Dowarah, Jayanta,Tewari, Ashish Kumar,Geiger, David K.
, p. 1289 - 1303 (2020/01/22)
Three phenyl dimer compounds, namely 3,3′-Diformyldiphenoxyethane (C16H14O4) (1), 1-(4-[2-(4-Acetyl-phenoxy)-ethoxy]-phenyl)-ethanone (C17H16N2O3) (2), 1-{4-[2-(4-Acetyl-phenoxymethyl)-benzyloxy]-phenyl}-ethanone (C24H22O4) (3), were obtained and fully characterized, including their crystal structure determinations. The structural properties of two compounds 4, 4′-(ethylenedioxy)dibenzaldehyde) (C16H14O4) (Tewari et al. Acta Cryst. E63:o1930, 2007) [1] (4) and 4-(2-Phenoxy-ethoxy)-benzaldehyde (C15H14O3) (Valgera et al. CCDC 710835, 2016) [2] (5) are discussed with the role of the substituent in crystal packing. In vivo, anti-inflammatory activities of all compounds were studied on Wistar strain albino rats. All the compounds exhibited anti-inflammatory activity except 5. Compounds 1, 2, 4 have shown moderate-to-intermediate effects on inhibitory properties. Compound (3) with restricted rotation in the compound-like SC-558 drug was shown to possess good inhibitory properties at 180?min. In silico analysis was performed and compared with experimental in vivo results.
Synthesis, Antimicrobial Evaluations, and DNA Photo Cleavage Studies of New Bispyranopyrazoles
Yusuf, Mohamad,Kaur, Manvinder,Sohal, Harvinder Singh
, p. 706 - 713 (2017/02/05)
The bispyranopyrazoles (4a, 4b, 4c, 4d, 4e, 4f, 4g) were synthesized from the reactions of dibenzaldehydes (2a, 2b, 2c, 2d, 2e, 2f, 2g) with 3-methylpyrazole-5-one 3 and malononitrile by refluxing under alcoholic medium. The dibenzaldehydes were obtained from the O-alkylation of 3-hydroxybenzaldehyde with suitable 1,ω-dibromoalkanes under the alkaline conditions in the presence of dry EtOH/DMF. The structures of bisheterocyclics were determined from rigorous analysis of their spectral parameters (IR,1H-NMR,13C-NMR, and ESI-MS). The newly prepared compounds were screened for their antimicrobial activity against seven bacterial and five fungal strains. The DNA photo cleavage potential of these compounds was also evaluated by using agarose gel electrophoresis, and bispyranopyrazoles 4b, 4d and 4e exhibited significant level of DNA photocleavage activity.
Ring-closing metathesis reaction-based synthesis of new classes of polyether macrocyclic systems
Naveen,Babu, Srinivasarao Arulananda
supporting information, p. 7758 - 7781 (2015/09/08)
Ring closing metathesis (RCM) reactions of suitable substrates having terminal olefins, which are assembled from various linkers and hydroxy benzaldehydes and syntheses of a wide range of 16-30 membered, new crown ether-type polyether, aza-polyether, bis aza-polyether macrocycles and dilactone moiety embedded polyether macrocycles (macrolides) are reported. After the ring-closure reaction, installation of different functional groups and functional group modification on the periphery of the synthesized polyether/crown ether macrocycles obtained in the RCM reactions are accomplished using the epoxidation, oxidation and catalytic hydrogenation-based synthetic transformations. Along this line, the syntheses of a variety of polyether macrocycles possessing epoxide or α-hydroxy ketone or 1,2-diol functionalities at the periphery have been shown. Furthermore, the synthesized α-hydroxy ketone functionality installed polyether macrocycles were subjected to the allylation and Reformatsky type reactions to obtain homoallyl alcohol moiety-based and lactone ring-appended polyether macrocycles.
Novel Bis(2-(5-((5-phenyl-1H-tetrazol-1-yl)methyl)-4H-1,2,4-triazol-3-yl)phenoxy)Alkanes: Synthesis and Characterization
Saeed, Aamer,Qasim, Muhammad,Hussain, Majid
, p. 1114 - 1118 (2015/08/06)
In this study, 10 different substituted aromatic bis-benzaldehydes were synthesized by treating hydroxy benzaldehydes with various dihaloalkanes. Bis aldehydes 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i, 5j were treated with 2-(5-phenyl-1H-tetrazole-1-yl)acetohyd
One-pot synthesis of bis(4,5-diphenylimidazol-2-yl-phenyl)glycols and evaluation of their antimicrobial activity
Linga Goud,Ramesh,Ashok,Prabhakar Reddy
, p. 673 - 678 (2015/05/05)
Abstract A new series of bis(4,5-diphenylimidazol-2-yl-phenyl)glycols were synthesized by reaction of bis(formylphenyl)glycols with benzil/benzoin and ammonium acetate in presence of iodine/acetic acid in ethanol. All newly synthesized compounds were char
New 1,3,4-bisthiadiazolines: Synthesis, characterization and antimicrobial evaluations
Yusuf, Mohamad,Kaur, Manvinder,Jain, Payal,Solanki, Indu
, p. 470 - 478,9 (2012/12/11)
The bisthiadiazolines 4a-4g have been synthesized in good yields from the cyclization reactions of bisthiosemicarbazones 3a-3g with acetic anhydride. The condensation reaction of dibenzaldehydes 2a-2g with thiosemicarbazide in alcoholic medium provided 3a
Bis(oxyphenylene)benzimidazoles: A novel class of anti-Plasmodium falciparum agents
Mayence, Annie,Vanden Eynde, Jean Jacques,Kaiser, Marcel,Brun, Reto,Yarlett, Nigel,Huang, Tien L.
experimental part, p. 7493 - 7500 (2012/01/03)
A small library of 26 2,2′-[alkane-α,ω- diylbis(oxyphenylene)]bis-1H-benzimidazoles has been prepared and evaluated against Giardia intestinalis, Entamoeba histolytica, Trypanosoma brucei rhodesiense, Trypanosoma cruzi, Leishmania donovani, and Plasmodium
Threitol-strapped manganese porphyrins as enantioselective epoxidation catalysts of unfunctionalized olefins
Collman, James P.,Lee, Virgil J.,Kellen-Yuen, Cynthia J.,Zhang, Xumu,Ibers, James A.,Brauman, John I.
, p. 692 - 703 (2007/10/02)
Nine members of a family of new chiral porphyrins have been prepared from reactions between ditosylthreitol derivatives and 5,10,15,20-tetrakis(2-hydroxyphenyl)porphyrin. The assignment of the resultant isomers has been made from their 1H NMR s
