(69) Evans, DF; Wightman, PJ J. Colloid Interface Sci. 1982, 86, 5 15-24. ... Yoshikatsu [to,* Brij Pal Giri, Masaaki Nakasuji, Toshiya Hagiwara, and Teruo Matsuura ... Contribution from the Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Kyoto 606, Japan. Received July 19, 1982 ... Abstract: A photoreversible cyclization of 3'(or 4')-X-2,4,6-triisopropylbenzophenones 1 (X = C6H5C0, 2,4,6-(i-Pr)3C6H2C0, CH3CO) into the corresponding 2 was investigated ...