Results 11 to 20 of about 92,013 (336)
Domino alkylation-cyclization reaction of propargyl bromides with thioureas/thiopyrimidinones: A new facile synthesis of 2-aminothiazoles and 5H-thiazolo[3,2-a]pyrimidin-5-ones [PDF]
, 2009 A new synthesis of 2-aminothiazoles and 5H-thiazolo[3,2-a]pyrimidin-5-ones was developed as a domino alkylation-cyclization reaction of propargyl bromides with thioureas and thio¬pyrimidinones, respectively.
Bernardini, Martina +3 more
core +1 more source
Synthesis of long-chain alkyl and alkenyl bromides
Journal of Lipid Research, 1966 Long-chain alkyl and alkenyl bromides are obtained in quantitative yields by the reaction of methanesulfonates with anhydrous magnesium bromide in absolute ether; cis-trans isomerization of double bonds does not occur.
Wolfgang J. Baumann, Helmut K. Mangold
doaj +1 more source
Molecules, 2020 Borylated aryl alkynes have been synthesized via one-pot iridium catalyzed C–H borylation (CHB)/Sonogashira cross-coupling of aryl bromides. Direct borylation of aryl alkynes encountered problems related to the reactivity of the alkyne under CHB ...
Ghayoor A. Chotana +4 more
doaj +1 more source
, 1998 Acneiform dermatoses are follicular eruptions. The initial lesion is inflammatory, usually a papule or pustule. Comedones are later secondary lesions, a sequel to encapsulation and healing of the primary abscess.
Jansen, Thomas, Plewig, G.
core +1 more source
Semiheterogeneous Dual Nickel/Photocatalytic (Thio)etherification Using Carbon Nitrides [PDF]
, 2019 A carbon nitride material can be combined with homogeneous nickel catalysts for light-mediated cross-couplings of aryl bromides with alcohols under mild conditions.
Cavedon, Cristian +3 more
core +1 more source
Dicyclohexylammonium bromide [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 En el compuesto del título, C(12)H(24)N(+)·Br(-), ambos anillos de ciclohexano adoptan la conformación de silla habitual. El catión y el anión están unidos por enlaces de hidrógeno N-H Br en una cadena lineal que se extiende a lo largo del eje c.
Kong Mun Lo, Seik Weng Ng
openaire +3 more sources
Synthesis of Optically Active Bifunctional Building Blocks through Enantioselective Copper-Catalyzed Allylic Alkylation Using Grignard Reagents [PDF]
, 2007 Enantioselective copper-catalyzed allylic alkylations were performed on allylic bromides with a protected hydroxyl or amine functional group using several Grignard reagents and Taniaphos L1 as a ligand.
Feringa, Ben L., +3 more
core +1 more source
Alkenylation and Allylation of Aldehydes by Using an Ni/Cr/TDAE Redox System [PDF]
, 2001 In 360 females, Bone mineral density (BMD) in lumbar vertebrae (L2-L4) was assessed by quantitative computed tomography (QCT), and the values obtained were compared with the frequency of vertebral transformation or fracture as assessed by lateral scan ...
Goto, Kentaro +4 more
core +1 more source
Transport du linuron, de l'imidaclopride et du bromure au travers de colonnes de sol et de lysimètres drainants [PDF]
Biotechnologie, Agronomie, Société et Environnement, 2000 Transport of linuron, imidacloprid and bromide along soil columns and field lysimeters. Undisturbed soil columns (65 cm high x 15 cm diam.) were used in a greenhouse experiment to study the effect of rainfall and mode of application on leaching pattern ...
Ndongo B., Leroux G.D., Fortin J.
doaj
Journal of Saudi Chemical Society, 2018 A highly stereoselective dibromination of diphenylphosphorylallenes using N-bromosuccinimide (NBS) as bromine reagent is developed, wherein a variety of 2-bromo-substituted allyl bromides were obtained in good to excellent yields under mild reaction ...
Qiang Wang +3 more
doaj +1 more source