Matches in DBpedia 2015-10 for { ?s ?p "A [4+3] Cycloaddition is a cycloaddition between a 4 atom pi-system and a 3 atom pi-system to form a seven-membered ring. Allyl or oxyallyl cations (propenylium-2-olate) are commonly used 3 atom pi-systems, while a diene (such as butadiene) plays the role of the 4 atom pi-system. It represents one of the relatively few synthetic methods available to form seven-membered rings stereoselectively in high yield. The reaction is a topic academic research."@en }
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- 4+3_cycloaddition abstract "A [4+3] Cycloaddition is a cycloaddition between a 4 atom pi-system and a 3 atom pi-system to form a seven-membered ring. Allyl or oxyallyl cations (propenylium-2-olate) are commonly used 3 atom pi-systems, while a diene (such as butadiene) plays the role of the 4 atom pi-system. It represents one of the relatively few synthetic methods available to form seven-membered rings stereoselectively in high yield. The reaction is a topic academic research.".
- 4+3_cycloaddition comment "A [4+3] Cycloaddition is a cycloaddition between a 4 atom pi-system and a 3 atom pi-system to form a seven-membered ring. Allyl or oxyallyl cations (propenylium-2-olate) are commonly used 3 atom pi-systems, while a diene (such as butadiene) plays the role of the 4 atom pi-system. It represents one of the relatively few synthetic methods available to form seven-membered rings stereoselectively in high yield. The reaction is a topic academic research.".