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SILACYCLOPHANONES. 2. CYCLIC ORGANOSILICON ESTERS OF TEREPHTHALIC ACID

Сергей Владимирович Басенко, Анастасия Сергеевна Солдатенко, Александр Валентинович Ващенко, Владимир Ильич Смирнов
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Abstract


The reactions of dichlorodimethylsilane or 1,3-dichlorotetramethyldisiloxane with bis(trimethylsilyl) ester of terephthalic acid (1:1 molar ratio, 20°C, 72–144 h) gave 69–97% yields of previously unknown 27- and 22-membered cyclic organosilicon esters of terephthalic acid, respectively. The molecular structures of 22-membered ester 4,4,6,6,12,12,14,14-octamethyl-3,5,7,11,13,15-hexaoxa-4,6,12,14-tetrasila-1,9(1,4)-dibenzacyclohexadecaphane-2,8,10,16-tetraone and trimethylsilyl ester of terephthalic acid were studied by X-ray structural analysis.

Authors: Sergey V. Basenko*, Anastasiya S. Soldatenko, Olexandr V. Vashchenko, Vladimir I. Smirnov


Keywords


cyclic esters of carboxylic acids; dichlorodimethylsilane; 1,3-dichlorotetramethyldisiloxane; terephthalic acid; trimethylsilyl esters of carboxylic acids

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