Synthesis and acidolysis of 3-endo-azidomethyl- and 3-endo-azidobicyclo[3.3.1]non-6-enes. A novel synthesis of 4-azahomoadamant-4-enes
作者:Tadashi Sasaki、Shoji Eguchi、Nao Toi、Takashi Okano、Yoshio Furukawa
DOI:10.1039/p19830002529
日期:——
The acidolysis of 3-endo-azidomethylbicyclo[3.3.1]non-6-ene (3) with methanesulphonic acid gave 4-azahomoadamant-4-ene (5) which was also produced from 3-endo-hydroxymethylbicyclo[3.3.1]non-6-ene (6) on treatment with NaN3–MeSO3H. The formation of (5) was rationalized by a π route cyclization followed by acidolytic ring expansion of intermediate azides on the basis of acidolysis of dideuterio-derivatives
3-内-叠氮基甲基双环[3.3.1]非-6-烯(3)与甲磺酸的酸解得到4-氮杂高锰金刚烷-4-烯(5),其也由3-内-羟甲基双环[3.3.1]制得。非6烯(6)用NaN 3 -MeSO 3 H处理。(5)的形成是通过π途径环化,然后在双酯衍生物的酸解基础上,对中间叠氮化物进行酸解环扩环而实现的。上述路线扩展到2,2-(16)和7,7-二甲基-4-氮杂十二烷四烯(17)的合成。3-的酸解内-azidobicyclo [3.3.1]壬-6-烯(23),得到2-氮杂金刚烷的反-4-醇(26)经由一个π-N +型环化。