CAS 1073-67-2: 4-Chlorostyrene

4-Chlorostyrene is used in the preparation of new bis(pyrazolyl)borato olefin complexes of copper(I). It is also employed in the investigation of regioselectivity in the cationic Heck reaction of 4-substituted styrenes. Further, it plays an important role in the preparation of 4-[(4-chloro-phenyl)-thioacetyl]-morpholine. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

4-Chlorostyrene

Applications 4-Chlorostyrene is a reagent primarily used in epoxidation reactions of olefins. Also used in the synthesis of 9-deazaxanthine derivatives as dual A2A antagonists/MAO-B inhibitors. References Srinivasan, K. et al.: J. Am. Chem. Soc., 108, 2309 (1986); Samsel, E. et al.: J. Am. Chem. Soc., 107, 7606 (1985); Rivara, S. et al.: J. Med. Chem., 56, 1247 (2013);

4-Chlorostyrene is a chlorinated organic compound. This chemical has been shown to bind to the hydroxyl group of polyhydroxy compounds, such as poly(vinyl alcohol), with a frequency shift of 1.0 cm-1 in the infrared spectrum. The ph optimum for this reaction is between 4 and 5. When exposed to cationic polymerization, chlorine atoms are incorporated into the polymer chain and the resultant product is a cationic polymer that has an isolated yield of 82%. In order for this reaction to be successful, both 4-chlorostyrene and 4-tert-butylcatechol must be present. The reaction mechanism is believed to involve diazonium salt formation followed by activation energies of 20 kcal/mol and 25 kcal/mol.

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.