Synthesis and Conformational Studies of 9-Methoxy[3.3]Metacyclophanes and 9-Methoxy[3]Metacyclo[3](2,6)Pyridinophane
作者:Bigyan Sharma、Xing Feng、Kazuya Tazoe、Shinpei Miyamoto、Takehiko Yamato
DOI:10.3184/174751911x13129120689822
日期:2011.8
anti-9-Methoxy[3]metacyclo[3](2,6)pyridinophan-2,11-dione is obtained by the coupling reaction of 2,6-bis (bromomethyl)pyridine and 2,6-bis[2-isocyano-2-(tolylsulfonyl)ethyl]-4-tert-butylanisole in dimethylformamide (DMF) with an excess of sodium hydride, from which the corresponding syn-9-methoxy[3]metacyclo[3](2, 6)pyridinophane is synthesised via anti–syn-isomerisation during the Wolff–Kishner reduction
anti-9-Methoxy[3]metacyclo[3](2,6)pyridinophan-2,11-dione 由 2,6-bis (bromomethyl)pyridine 和 2,6-bis[2-isocyano 偶联反应得到-2-(甲苯磺酰基)乙基]-4-叔丁基苯甲醚在二甲基甲酰胺 (DMF) 中与过量的氢化钠,从中合成相应的 Syn-9-甲氧基 [3] 间环 [3](2, 6) 吡啶烷在 Wolff-Kishner 还原过程中通过反同异构化获得良好的产率。