Results 61 to 70 of about 32,899 (265)
Condensation of beta-hydroxy sulfones and vinyl sulfones with aldehydes and ketones using phenyllithium as base [PDF]
, 2004 4 pages Merci à Elsevier pour l'autorisation de déposer cet article sur HAL.Condensation of beta-hydroxysulfones 7a-b with aldehydes and ketones were performed with diverse bases.
Grimaud, Laurence +2 more
core +3 more sources
Beilstein Journal of Organic Chemistry, 2015 Here, we describe a new and simple synthetic strategy to various polycyclic sulfones via Diels–Alder reaction and ring-rearrangement metathesis (RRM) as the key steps.
Sambasivarao Kotha, Rama Gunta
doaj +1 more source
Synthesis of New Active Sulfones in the 5-Nitroimidazole Series
Molecules, 2002 We describe here the preparation of new 5-nitroimidazoles which are known to have an efficacy against metronidazole-susceptible and -resistant Giarda, Trichomonas, and Entamoeba spp. The multi-step synthesis uses electron transfer methodology.
Patrice Vanelle +2 more
doaj +1 more source
Molecules, 2020 A highly efficient sulfonylation of para-quinone methides with sulfonyl hydrazines in water has been developed on the basis of the mode involving a tetrabutyl ammonium bromide (TBAB)-promoted sulfa-1,6-conjugated addition pathway.
Zhang-Qin Liu +5 more
doaj +1 more source
Possible contribution of olefins and heteroatoms to the Unidentified Infrared Bands [PDF]
Astron.Astrophys.402:L13-L16,2003, 2003 The current assignments of the 11.3 feature are shown to be incompatible with observations. An unbiased survey of correlation charts suggests that the olefinic group R2=CH2 is a good alternative candidate. For the 12.7 feature, the best fits are provided by nitrites, R-O-N=O, and amines, R-N=H2.
arxiv +1 more source
6-Nitro-7-tosylquinazolin-4(3H)-one
Molbank, 2020 Sulfones are important building blocks in the construction of biologically active molecules or functional materials. The sulfonyl functional group in sulfones is so versatile that it can act as either a nucleophile, an electrophile, or a radical in ...
Thi Ngoc Nguyen +8 more
doaj +1 more source
Influence of Sulfoxide Group Placement on Polypeptide Conformational Stability. [PDF]
, 2019 The synthesis of a homologous series containing five new nonionic sulfoxide containing polypeptides was described. Sulfoxide groups bestowed water solubility for all homologues, which allowed their use as a model for study of helix-coil transitions in ...
Bahrun, Ehab +2 more
core
Fluorescence-based proteasome activity profiling [PDF]
, 2012 With the proteasome emerging as a therapeutic target for cancer treatment, accurate tools for monitoring proteasome (inhibitor) activity are in demand.
Berkers, C.R. +4 more
core +1 more source
Frontiers in Chemistry, 2019 One of the limiting factors in the development of magnesium batteries is the reversibility of magnesium electrodeposition and dissolution at the anode. Often irreversibility is related to impurities and decomposition.
Laura C. Merrill, Jennifer L. Schaefer
doaj +1 more source
Adsorption of Diclofenac and PFBS on Hair Keratin Dimer [PDF]
arXiv, 2023 Environmental pollution by man-made toxic and persistent organic compounds, found throughout the world in surface and groundwater, has various negative effects on aquatic life systems and even humans. Therefore, it is important to develop and improve water treatment technologies capable of removing such substances from wastewater or purifying drinking ...
arxiv