Synthesis of functionalized 6-(Pyridyl)salicylates, Bis(benzophenones), chlorinated 6H-Benzo[c]chromen-6-ones, 9H-Fluoren-9-ones, Isobenzomorphans and Dibenzo[b,d]pyrid-6-ones based on new cyclocondensations of 1,3-Bis(silyloxy-1,3-butadienes Yawer, Mirza Arfan , 1981- Text theses Text Hochschulschrift 2008 2008 eng electronic resourceremoteComputermedienOnline-RessourceOnline-Ressource graph. Darst. Regioselective cyclocondensation reactions of 1,3-bis(silyl enol ethers) with different mono(silyl enol ethers) provide an elegant approach for the synthesis of various complex carba- and heterocycles from simple starting materials. 6-(Pyridyl)salicylates and biaryls are prepared based on [3+3] cyclocondensations of 1,3-bis(silyl enol ethers) and 1-aryl-1-silyloxy-1-en-3-ones. Subsequently, 2-methoxy- and 2-nitro-substituted biaryls are transformed into biaryl lactones and 6(5H)-phenanthridinones based on a lactonization and lactamization strategy, respectively. Furthermore, some of the biaryls are also converted to the respective fluorenones by FriedelCrafts acylations. The cyclocondensation reaction of aryl-1,3-bis(silyl enol ethers) with 3-formylchromone yielded bis(benzophenones). In addition, functionalized 7,8-benzo-9-azabicyclo[3.3.1]nonan-3-ones (isobenzomorphanons) have been prepared by cyclocondensation of aryl-1.3-bis(silyl enol ethers) with isoquinolines. vorgelegt von Mirza Arfan Yawer Rostock, Univ., Mathematisch-Naturwiss. Fak., Diss., 2008 540 540 35.69 http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2008-0083-3 http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2008-0083-3&pdf http://nbn-resolving.de/urn:nbn:de:gbv:28-diss2008-0083-3 Synthesis of functionalized 6-(Pyridyl)salicylates, Bis(benzophenones), chlorinated 6H-Benzo[c]chromen-6-ones, 9H-Fluoren-9-ones, Isobenzomorphans and Dibenzo[b,d]pyrid-6-ones based on new cyclocondensations of 1,3-Bis(silyloxy-1,3-butadienes--(DE-627)577792326 urn:nbn:de:gbv:28-diss2008-0083-3 oclc: 836815127 ppn: (DE-627)577878093