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Reference of 14098-44-3. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 14098-44-3, Name is Benzo-15-crown-5. In a document type is Article, introducing its new discovery.

O -ylide and pi-complex formation in reactions of a carbene with dibenzo and monobenzo crown ethers

Reactions of p-nitrophenylchlorocarbene (PNPCC) with various dibenzo crown ethers produce O-ylides and pi-complexes; the reactions can be followed via the spectral signatures of the carbene and the products. The O-ylides form most rapidly, but over time they decay in favor of the more stable pi-complexes. Extensive computational studies support and refine appropriate structural and mechanistic conjectures. Reactions of PNPCC with monobenzo crown ethers afford only the spectral signatures of O-ylides; monobenzo pi-complexes are either not formed in significant concentrations or are spectroscopically silent.

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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare