Synthesis of New Sulfur- and Selenium-Containing ‘Donor-Acceptor-Stabilized’ Systems with Central Bicyclo-[4.4.1]undeca-4,6,8,10-tetraene-2,3-diylidene- or Bicyclo[4.4.1]undeca-3,6,8,10-tetraene-2,5-diylidene Groups
具有中心双环-[4.4.1] undeca-4,6,8,10-
丁烯-2,3-二亚烷基或双环[4.4.1]的新的含
硫和
硒的“供体-受体稳定的”系统的合成] undeca-3,6,8,10-四烯-2,5-二亚烷基