Synthesis and Reactions of Monosilylated 1,3,5-Hexatriyne and 1,3,5,7-Octatetrayne. Total Synthesis of Caryoynencins
作者:Masahiko Yamaguchi、Hyeon-Joo Park、Masahiro Hirama、Kazuhiko Torisu、Shigeo Nakamura、Toru Minami、Hiroshi Nishihara、Tetsuo Hiraoka
DOI:10.1246/bcsj.67.1717
日期:1994.6
Selective monodesilylation of 1,8-bis(t-butyldiphenylsilyl)-1,3,5,7-octatetrayne and 1,6-bis(t-butyldiphenylsilyl)-1,3,5-hexatriyne with lithiated phenylacetylene gave unstable 1-(t-butyldiphenylsilyl)-1,3,5,7-octatetrayne and 1-(t-butyldiphenylsilyl)-1,3,5-hexatriyne, respectively. The terminal acetylenes on lithiation added to aldehydes and a ketone giving polyynols in high yields. The reaction was applied to the synthesis of polyyne antibiotics, caryoynencins. Polymerization of the terminal octatetrayne on an ITO-coated glass plate gave a film, which showed conductivity of 10−4 S cm−1 when doped with SO3.
5-hexatriyne 与石碳酸苯乙炔的反应分别产生了不稳定的 1-(t-丁基二苯基硅烷基)-1,3,5,7-辛四炔和 1-(t-丁基二苯基硅烷基)-1,3,5-hexatriyne。在石化过程中,末端乙炔与醛类和酮类发生反应,产生多炔醇,产量很高。该反应被应用于合成多炔抗生素--卡里诺霉素。在掺杂了 SO3 的 ITO 涂层玻璃板上聚合末端的辛四炔,可得到一层薄膜,其导电率为 10-4 S cm-1。