Synthesis of heterocyclic propellanes. Preparation and transannular reactions of 5-ethoxycarbonylmethylene-cyclooctanone and the corresponding oximes and hydrazones
作者:E. Malamidou-Xenikaki、D.N. Nicolaides
DOI:10.1016/s0040-4020(01)88060-1
日期:1986.1
tanone (3) is prepared by Wittig monoolefination of dione 1 with phosphorus ylide 2. Thermal transannular cyclization of oxime 6 and phenylhydrazone 12 of the ketone 3 affords 3-oxa-2-aza- and 2,3-diaza[3.3.3] propellanes 7 and 14 respectively. Irradiation of ketone 3, its oxime 9, and its dimethylhydrazone 16 furnish 9-oxa-, and 9-aza[3.3.2] propellanes 11, 10, and 17, respectively. In addition to
5-乙氧基羰基亚甲基-环辛酮(3)是通过将二酮1与叶立德磷2进行Wittig单烯烃反应制得的。肟6和酮3的苯hydr 12的环氧基环化反应可制得3-oxa-2-aza-和2,3-diaza [ 3.3.3]螺旋桨7和14。辐照酮3,其肟9和其二甲基hydr 16分别提供9-氧杂-和9-氮杂[3.3.2]螺旋桨11、10和17。除了螺旋桨14以外,还可从苯12.12获得苯基偶氮二环化合物13。还制备并研究了螺旋桨7和14的乙酰基衍生物8和15。