67249-03-0

Upstream product

• 38186-51-5 diethyl (4-bromobenzyl)phosphonate 
• 1571-08-0 methyl 4-formylbenzoate 
• 67-56-1 methanol 
• 2039-82-9 1-bromo-4-ethenyl-benzene 
• 1253-46-9 4-methoxycarbonylbenzyltriphenylphosphonium bromide 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 67-64-1 acetone 
• 2417-72-3 Methyl 4-(bromomethyl)benzoate 
• 1122-91-4 4-bromo-benzaldehyde 

Downstream Products

• 666830-55-3 trans-4-(N,N-diphenylamino)-4'-(methoxycarbonyl)stilbene 
• 700845-97-2 trans-4-(N,N-diphenylamino)-4'-(hydroxymethyl)stilbene 
• 700845-98-3 trans-4-(N,N-diphenylamino)-4'-(phthalimidomethyl)stilbene 
• 63483-64-7 4-p-Bromostyrylphenylessigsaeure 

Relevant academic research and scientific papers

Rhodium-catalyzed oxidative decarbonylative Heck-type coupling of aromatic aldehydes with terminal alkenes

A rhodium-catalyzed oxidative decarbonylative Heck-type coupling of aromatic aldehydes with terminal alkenes to afford 1,2-disubstituted alkenes with good regio- and E-selectivity is developed. This reaction employs readily available aromatic aldehydes as the aryl electrophile counterpart and relies on selected acyl chloride as the crucial additive to activate the rhodium catalyst precursor.

Synthesis of stilbene analogues by one-pot oxidation-Wittig and oxidation-Wittig-Heck reaction

Synthesis of symmetrical (and unsymmetrical) stilbene derivatives is achieved by a combination of one-pot steps of Kornblum type oxidation of benzyl halide, its simultaneous in situ formation of phosphonium salt, and subsequently their Wittig reaction. In other variant it is oxidized to aldehyde, treated with ylide generated from phosphonium salt (CH3PPh3X) to give styrene, and subjected to Pd catalyzed Heck reaction with arylhalide to give stilbenes as the three-step one-pot sequence.

Use of functionalized onium salts as a soluble support for organic synthesis

The invention relates to the use of a onium salt functionalized by at least one organic function, as a soluble support, in the presence of at least one organic solvent, for organic synthesis of a molecule, in a homogenous phase, by at least one transformation of said organic function. The onium salt enables the synthesized molecule to be released. The onium salt is present in liquid or solid form at room temperature and corresponds to formula A1+, X1?, wherein A1+ represents a cation and X1? represents an anion.

Spectroscopic Correlations between Supermolecules and Molecules. Anatomy of the Ion-Modulated Electronic Properties of the Nitrogen Donor in Monoazacrown-Derived Intrinsic Fluoroionophores

The synthesis, absorption and emission spectra, fluorescence quantum yields, and fluorescence lifetimes of three compound series of trans-4,4′-disubstituted aminostilbenes (1-3) are reported. The chromo-/fluoroionophoric behavior of the monoaza-15-crown-5