Methylation of a Benzene Ring as a Chemical Signal. Marked Changes in the Pattern of Temperature Dependence of the Selectivity in Oxidation of a Pair of …

T Endo, A Okubo, Y Kaneko, M Uehara…

Index: Endo, Tadashi; Okubo, Akihiro; Kaneko, Yuji; Uehara, Masatoshi; Tasai, Hidetoshi; et al. Bulletin of the Chemical Society of Japan, 1982 , vol. 55, # 7 p. 2224 - 2232

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Citation Number: 21

Abstract

Temperature dependence of the selectivity [the ratio of an unsymmetrical disulfide to symmetrical one] has been studied in oxidation of a pair of associating thiols, each with the recognition site [C 6 H 4 N (CH 3) 2 and R 1], with O 2 in 80%(v/v) acetonitrile–20% water in the range of− 10 to 70° C. The selectivity for R 1= C 6 H 4 CH 3 shows a minimum at 35° C, whereas for R 1= C 6 H 5 the selectivity exhibits a maximum at 35° C; for R 1= C 6 H 4 C 2 ...