Chain Propagation in the Photostimulated Reaction of 1-Bromonaphthalene with Sulfur Centered Nucleophiles in DMSO.

LUCIANA C. SCHMIDT, JUAN E. ARGÜELLO, VALENTINA REY AND ALICIA B. PEÑÉÑORY

La Plata, Argentina

Congreso; Encuentro Latinoamericano de Fotoquímica y Fotobiología (VIII ELAFOT); 2004

The reactivity of -SCNH(NH2) (1), CH3COS- (2) and PhCOS- (3) in photoinduced substitution reactions with 1-bromonaphthalene (4) was studied in DMSO.-SCNH(NH2) (1), CH3COS- (2) and PhCOS- (3) in photoinduced substitution reactions with 1-bromonaphthalene (4) was studied in DMSO.4) was studied in DMSO. By using hydrogen abstraction from DMSO as competitive reaction, the absolute rate constants for the addition of ions 1, 2 and benzene thiolate ions to 1-naphthyl radicals have been determined to be 1.0 x 109 M-1s-1, 1.2 x 109 M-1s-1 and 5.1 x 109 M-1s-11, 2 and benzene thiolate ions to 1-naphthyl radicals have been determined to be 1.0 x 109 M-1s-1, 1.2 x 109 M-1s-1 and 5.1 x 109 M-1s-19 M-1s-1, 1.2 x 109 M-1s-1 and 5.1 x 109 M-1s-1 respectively