olefination. The compounds (RSiMe2)3CLi were treated with 25,26,27,28-tetrakis(4-bromobutoxy)calix[4]arene (4) to give 25,26,27,28-tetrakis[4-(tris(dimethylsilyl)methyl)butoxy] calix[4]arene (5a) and 25,26,27,28-tetrakis[4-(tris(trimethylsilyl)methyl)butoxy] calix[4]arene (5b) via nucleophilic substitution reactions. However the compound 25,26,27,28-tetrakis[4-(tris(dimethylphenylsilyl)methyl)butoxy] calix[4]arene
用
二异丙基氨基
锂(
LDA)或
甲基锂在THF中
金属化(RSiMe 2)3 CH(1a R = H,1b R = Me,1c R = Ph)得到
有机锂试剂(RSiMe 2)3 CLi,其与甲酰化的杯
芳烃反应(2),通过如下方式得到相应的5,17-双[2,2-双(有机甲
硅烷基)-
1-乙烯基] -25,26,27,28-四丙氧基杯[4]
芳烃(3a,3b和3c)。彼得森烯化。用25,26,27,28-四(4-
溴丁氧基)杯[4]
芳烃处理化合物(RSiMe 2)3 CLi(4)得到25,26,27,28-四[4-(三(二甲基甲
硅烷基)甲基)丁氧基]杯[4]
芳烃(5a)和25,26,27,28-四[[甲基]丁氧基]杯[4]
芳烃(5b)通过亲核取代反应。但是,未得到化合物25,26,27,28-四[4-(三(二(二甲基苯基甲
硅烷基)甲基)丁氧基]杯[4]
芳烃(5c),这可能是因为(PhSiMe 2)3 C-