�ber den Einflu� von Substituenten auf die Ultraviolettabsorption des einfachen und des mit Doppelbindungen konjugierten Benzolchromophors

Near Ultraviolet Absorption Spectra of Halogenated Nitrobenzenes

“…Received June 25,1953 The observations of the effect of the 9-deuterium substitution on the solvolysis rates of tertiary alkyl chlorides have been extended to include the case of a tertiary deuterium atom. The solvolysis rate constants in 80% aqueous alcohol at 25°f or 2,3-dimethyl-2-chlorobutane and its 3-deutero analog are 8.68 and 6.76 X 10"* sec.-1, respectively.…”

The Ultraviolet Absorption Spectra of Aromatic Hydrocarbons.

“…As might be anticipated, more extensive investigations have been made of derivatives of benzene than of polynuclear aromatic hydrocarbons (60,178,180,191,236,237,251). Many substituents appear to modify the spectrum of benzene to a much greater extent than they affect those of more complex hydrocarbons; this is true particularly of their effect on the intensity of absorption.…”

The Reactions of Monomeric Styrenes.

“…The o-, m-, and p-aminostyrenes (404,557) as well as o-amino-S-chloro- (404,405,453,504) and o-amino-/3-bromo-styrenes ( 404) have all been prepared by reducing the corresponding nitrostyrene with stannous chloride and hydrochloric acid. m-Nitrostyrene was reduced to 3,3'-divinylazobenzene in 69 per cent yield by means of sodium stannite and the latter compound converted to 2,2'-divinylbenzidine in 25 per cent yield by means of stannous chloride and hydrochloric acid followed by concentrated hydrochloric acid (404).…”