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Methyl Triphenyl Phosphonium BromideMethyl triphenyl phosphonium bromide (CAS 1779-49-3), with a purity of 99.5% min,it is used as a phase transfer catalyst in organic synthetic chemistry, suitable for the synthesis of interaromaticread more
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(Methoxymethyl)triphenylphosphonium Chloride(Methoxymethyl)triphenylphosphonium chloride(CAS 4009-98-7) is an important reagent in organic synthesis. After being treated with strong alkali, it undergoes Wittig reaction with various aldehydesread more
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Tetramethylammonium ChlorideTetramethylammonium chloride 99.0% (CAS Number 75-57-0) ,It is primarily used as a fluorination catalyst, a phase transfer catalyst, and a curing accelerator for powder coatings and epoxy polymerread more
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Tetraethylammonium BromideTetraethylammonium bromide 99.0% ( CAS 71-91-0) is used as a reagent in polarography, as an intermediate in pesticide production, and occasionally for testing metals such as gold, iridium, palladium,read more
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Tetrabutylammonium BromideTetrabutylammonium Bromide 99.0% (CAS 1643-19-2) is a widely used phase transfer catalyst, commonly used in organic synthesis, esterification reactions, alkylation reactions, and other fields. Ourread more
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Tetrabutylammonium TribromideTetrabutylammonium tribromide (CAS 38932-80-8) is a stable orange non-toxic solid with a melting point of 69–75°C. It is insoluble in water but soluble in chloroform, dichloromethane, ethyl acetate,read more
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Triethylamine HydrochlorideTriethylamine hydrochloride (CAS 554-68-7), with a purity of 99.0% min, is also known as hydrochloric acid triethylamine or N,N-diethylethylamine hydrochloride. It is an off-white crystalline solid.read more
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Ethyl Triphenyl Phosphonium BromideEthyltriphenylphosphonium bromide (CAS 1530-32-1), with a purity of 99.5% min, it is white crystalline powder. It is a precursor of phosphine Ylide for Wittig reactions in fine chemicals,read more
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Tetraethylammonium HydroxideTetraethylammonium hydroxide (CAS 77-98-5) is used as a phase transfer catalyst, a template agent for molecular sieve synthesis, a cleaning agent, and a deimpurity agent in the petroleum industry.read more
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Benzyltriethylammonium HydroxideBenzyltriethylammonium hydroxide, also known as hydroxy-phenyltriethylamine, is an organic compound with the formula C13H23NO and a molecular weight of 209.33. The chemical belongs to the quaternaryread more
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1- Adamantyltrimethylammonium Hydroxide1-adamantyltrimethylammonium hydroxide, chemical formula C13H25NO, CAS number 53075-09-5, is an organic compound belonging to the quaternary ammonium salt class. It is easy to absorb carbon dioxide,read more
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12- Crown Ether -412-Crown-4 (12-crown-4) is an organic compound belonging to the crown ether family with a molecular formula of C8H16O4 and a molecular weight of 176.21 g/mol. Crown ether is a class ofread more
These PTC displacement reactions require high temperature and require thermally stable phase-transfer catalysts, such as hexaethyl guanidinium chloride (HEG Cl) and tetraphenyl...
Dec 16, 2023 · 15. O'Driscoll BR (1989) "Supraventricular tachycardia caused by nebulised ipratropium bromide." Thorax, 44, p. 312. 16. Cabana MD, Johnson H, Lee CKK, Helfaer M (1998) "Transient...
Tetrabutyl phosphonium bromide, TBPB, usually provides higher reactivity as a phase-transfer catalyst than TBAB, the corresponding ammonium salt, due to the looser ion pair with the reacting anion...
Sep 25, 2015 · Phase-transfer catalysis (PTC) is useful primarily for performing reaction between anions and organic substrates. Catalysts used most extensively are quaternary ammonium or...
Compounds containing bromide ions—including potassium-, sodium-, and ammonium bromide—were once used as sedatives and anticonvulsants, and were a major ingredient in over-the-counter products (eg,...
Bromide was the sole viable anticonvulsant on the market until the discovery of phenobarbital in 1912. Bromide was first offered to dogs in 1907, but its promise as an anticonvulsant was not found...
