Thermal rearrangement of divinylcyclopropane systems. Preparation of functionalized, stereochemically defined bicyclic and tricyclic products containing the bicyclo[3.2.1]octane skeleton
作者:Edward Piers、Grace L. Jung、Neil Moss
DOI:10.1016/0040-4039(84)80040-4
日期:——
A study involving the preparation and thermolysis of substituted 6--(1-alkenyl)bicyclo[3.1.0]hex-2-ene systems (14, 15, 23, 29, 40) shows (a) that C-8 functionalized bicyclo[3.2.1]octa-2,6-dienes can be prepared readily this methodology (14 → 16; 15 → 17), (b) that the rearrangement reaction is stereospecific even when the 6-(1-alkenyl) group is substituted with a sterically bulky isopropyl group (23
一项涉及制备和热取代取代的6 --(1-烯基)双环[3.1.0]己-2-烯体系(14,15,23,29,40)的研究表明(a)C-8功能化的双环[3.2.1] octa-2,6-dienes可以很容易地用这种方法制备(14→16; 15→17),(b)即使6-(1-烯基)基团被取代,重排反应也是立体有序的(23→24; 29→30),并且(c)该方法可以扩展到包括三环系统的制备(40→41)。