Thermal reorganizations of 1, 2: 3, 4-dibenzotropilidene (5H-dibenzo [a, c] cycloheptene), 7, 7'-bi (1, 2: 3, 4-dibenzotropyl)[5, 5'-bi (5H-dibenzo [a, c] cycloheptenyl)], …

M Pomerantz, NL Dassanayake…

Index: Pomerantz, Martin; Dassanayake, Nissanke L.; McManus, Timothy R.; Reynolds, Charles H. Journal of Organic Chemistry, 1984 , vol. 49, # 21 p. 4029 - 4032

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Citation Number: 6

Abstract

Results Preparation and Pyrolysis of lY2: 3, 4-Dibenzotropilidene (8). 1, 2: 3, 4- Dibenzotropilidene (8) was prepared by the reactions shown in Scheme I. 596 The sequence for preparation of alcohol ll was the same as that in the literature. 6@ Although 1, 2: 3, 4-dibenzotropilidene (8) has been prepared previously by other methods, 7i8 we prepared it by refluxing the alcohol (1 1) with p-toluenesulfonyl chloride in pyridine. Two ...