phase transfer catalysis

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phase transfer catalysis

[′fāz ¦trans‚fər kə′tal·ə·səs]
(organic chemistry)
Enhancement of the reaction rate of a two-phase organic-water system by addition of a catalyst which alters the rate of transfer of water-soluble reactant across the interface to the organic phase.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Rather than that, the hydrophilic-hydrophobic character of Fe/Ti[O.sub.2] facilitate dibenzothiophene oxidation as a phase transfer catalyst. The coordination of acetic acid and peroxyacetic acid with [Fe.sup.3+] and [Ti.sup.4+] present at the Fe/Ti[O.sub.2] surface which in turn perform a superoxides its surface [208] (Figure 7).
Titanium dioxide as a catalyst support in heterogeneous catalysis
One of the most important strategies to overcome this limitation of water is using phase transfer catalysts (PTC).
Investigation of Proline Amides and Pyridinium Salts as Catalyst for Direct Aldol Reactions in Water
He also includes ways of conducting reactions that are less harmful, such as making them in aqueous phase, using phase transfer catalysts, using sonication and microwave technologies, and performing reactions enzymatically and photochemically.
Green chemistry; environmentally benign reactions, 2d ed
These organic chemicals are mainly used as phase transfer catalysts in chemical reactions as they are soluble in both water and non-polar liquids.
-CRISIL upgrades rating on Delta Finochem to BB+/positive
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