Generation and Reactions of Ylides by Carbenoid Decomposition

Compounds in which a carbonyl or other nucleophilic functional group is close to a carbenoid carbon can react to give intermediates by intramolecular bonding. One example is the formation of carbonyl ylides which go on to react by 1,3-dipolar addition. 

CHAPTER 10 REACTIONS INVOLVING CARBOCATIONS, CARBENES, AND RADICALS AS REACTIVE INTERMEDIATES 

Allylic ethers and acetals can react with carbenoid reagents to generate oxonium ylides which undergo 2,3-sigmatropic shifts/  

Reactions Involving Carbocations, Carbenes, and Radicals as Reactive Intermediates 

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