Results 41 to 50 of about 82,213 (177)
Joy and Flustration with Organofluorine Compounds – A Fluorous Autobiography
CHIMIA, 2014 An overview is given about our work on fluoro-organic compounds, published or described in PhD theses between 1977 and 2013. After a discussion of structural F-effects and F-tagging applications the material is ordered by the various areas of ...
Dieter Seebach
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Fluorine in silicate glasses: A multinuclear nuclear magnetic resonance study [PDF]
, 1992 Anhydrous nepheline, jadeite, and albite glasses doped with F as well as hydrous F-containing haplogranitic glasses were investigated using 19F combined rotation and multiple-pulse spectroscopy; 19F → 29Si cross-polarization/magic angle spinning (MAS ...
Merwin, Lawrence +5 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2014 The syntheses of palmitic acids and a nonadecane are reported with CF2 groups located 1,3 or 1,4 to each other along the aliphatic chain. Specifically 8,8,10,10- and 8,8,11,11-tetrafluorohexadecanoic acids (6b and 6c) are prepared as well as the singly ...
Yi Wang +3 more
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Beilstein Journal of Organic Chemistry, 2013 In the last few years, transition metal-mediated reactions have joined the toolbox of chemists working in the field of fluorination for Life-Science oriented research.
Grégory Landelle +4 more
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Flavin Catalysts in Organic Synthesis
Angewandte Chemie International Edition, EarlyView.Flavins and their congeners are potent catalysts for organic synthesis inspired by enzymatic transformations. In addition to catalysis in the flavin ground state via covalent intermediates, the excited singlet and triplet states unlock applications including photooxidation, photoreduction, and energy transfer via sensitization.
Jan Freudenberg, Golo Storch
wiley +1 more source
Elemental fluorine as a valid synthetic reagent [PDF]
, 1994 Chapter I Chapter I reviews the uses of elemental fluorine in selective organic synthesis and its use in the generation of selective electrophilic fluorinating agents.
Skinner, Christopher John
core
Nickel‐Catalyzed Reductive Cross‐Coupling of Xanthate Esters With Aryl and Alkenyl Iodides
Chemistry – A European Journal, EarlyView.A nickel‐catalyzed reductive cross‐coupling of xanthate esters and aryl/alkenyl iodides is reported without the need for separate activators for the xanthate esters. The reaction utilizes a relatively low catalyst loading. Diarylmethanes with a good functional group variety can thus be synthesized indirectly from the corresponding benzylic alcohols ...
Felix Vöhringer +4 more
wiley +1 more source
Aplicações sinteticas de enzimas imobiliadas em organo-gel e gel de agar [PDF]
, 1997 Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.As microemulsões água-em-óleo (água + óleo + surfactante) podem ser utilizadas para formar géis elásticos e termoreversíveis pela adição de gelatina.
Queiroz, Neide
core
On the Ability of Bismuth to Couple Weakly Coordinating Anions
Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.Motivated by the growing number of catalytic processes based on high‐valent Bi, we investigated in silico the reductive elimination step responsible for the coupling of weakly coordinating anions. Relativistic contributions appeared to be decisive to the electronic description of the intermediates involved in this process.
Lucas Mele +3 more
wiley +2 more sources
Multigramme synthesis and asymmetric dihydroxylation of a 4-fluorobut-2E-enoate
Beilstein Journal of Organic Chemistry, 2013 Esters of crotonic acid were brominated on a multigramme scale using a free radical procedure. A phase transfer catalysed fluorination transformed these species to the 4-fluorobut-2E-enoates reproducibly and at scale (48–53%, ca. 300 mmol).
James A. B. Laurenson +4 more
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