Brominations with Pr4NBr9 as a solid reagent with high reactivity and selectivity

TM Beck, H Haller, J Streuff, S Riedel - Synthesis, 2014 - thieme-connect.com
Tetrapropylammonium nonabromide (Pr 4 NBr 9) is introduced as a room-temperature solid
reagent for rapid bromination reactions of various substrates. The reagent exhibits reactivity …

Preparation and application of triphenyl (propyl-3-hydrogen sulfate) phosphonium bromide as new efficient ionic liquid catalyst for synthesis of 5-arylidene barbituric …

S Karami, AR Momeni, J Albadi - Research on Chemical Intermediates, 2019 - Springer
We report synthesis of triphenyl (propyl-3-hydrogen sulfate) phosphonium bromide
([TPPHSP] Br) as a reusable green Brønsted-acidic ionic liquid catalyst and its application …

Bromination of phenyl ether and other aromatics with bromoisobutyrate and dimethyl sulfoxide

JQ Li, XH Chen, XX Wang, HL Cui - Tetrahedron Letters, 2021 - Elsevier
Bromoisobutyrate has been used for the first time as a general brominating source for the
direct bromination of a diverse of simple phenyl ethers. Aromatic ethers bearing various …

[HTML][HTML] Sono-bromination of aromatic compounds based on the ultrasonic advanced oxidation processes

M Fujita, JM Lévêque, N Komatsu, T Kimura - Ultrasonics Sonochemistry, 2015 - Elsevier
A novel, mild “sono-halogenation” of various aromatic compounds with potassium halide
was investigated under ultrasound in a biphasic carbon tetrachloride/water medium. The …

Highly efficient halogenation of organic compounds with halides catalyzed by cerium (III) chloride heptahydrate using hydrogen peroxide as the terminal oxidant in …

H Firouzabadi, N Iranpoor, S Kazemi… - Advanced Synthesis …, 2009 - Wiley Online Library
In this article a new environmentally friendly catalytic method is described for the efficient
monoiodination and bromination of arenes and also iodoetherification and iodolactonization …

Regioselective bromination of activated aromatic substrates with a ZrBr4/diazene mixture

T Stropnik, S Bombek, M Kočevar, S Polanc - Tetrahedron Letters, 2008 - Elsevier
A regioselective method for the bromination of phenols, ethers and anilines using a
ZrBr4/diazene mixture is described. The reaction takes place under mild reaction conditions …

Direct halogenation of organic compounds with halides using oxone in water—A green protocol

H Firouzabadi, N Iranpoor… - Canadian Journal of …, 2009 - cdnsciencepub.com
Direct bromination and iodination of various aromatic compounds with NaBr and NaI using
oxone (2KHSO5⊙ KHSO4⊙ K2SO4) in water was accomplished successfully in high-to …

[HTML][HTML] Synthesis and cytotoxic activity of a new group of heterocyclic analogues of the combretastatins

AV Lipeeva, EE Shults, MM Shakirov, MA Pokrovsky… - Molecules, 2014 - mdpi.com
A series of new analogs of combretastatin A-4 (CA-4, 1) with the A or B-ring replaced by a 3-
oxo-2, 3-dihydrofurocoumarin or a furocoumarin residue have been designed and …

Polyvinylpolypyrrolidone–bromine complex: Mild and efficient polymeric reagent for bromination of activated aromatic compounds

M Mokhtary, MM Lakouraj - Chinese Chemical Letters, 2011 - Elsevier
Mild and efficient method for bromination of electron-rich aromatic compounds is described
using polyvinylpolypyrrolidone–bromine complex (PVPP–Br2). The reaction proceeded …

[HTML][HTML] Regioselective and high-yielding bromination of phenols and anilins using N-bromosaccharin and amberlyst-15

R Baharfar, H Alinezhad, S Azimi… - Journal of the Chilean …, 2011 - SciELO Chile
A regioselective and facile conversion method for bromination of anilines and phenols using
N-bromosaccharine in the presence of a catalytic amount of Amberlyst-15 lead to …