Photoaddition Reactions of Acetylpyridines with Silyl Ketene Acetals: SET vs [2 + 2]-Cycloaddition Pathways

Photoaddition reactions of silyl ketene acetals with 2-, 3- and 4-acetylpyridine have been explored. The results show that the acetylpyridines react with an electron rich, dimethyl-substituted silyl ketene acetal via a pathway in which excited state single electron transfer (SET) takes place to prod...

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Veröffentlicht in:	Journal of organic chemistry 2012-11, Vol.77 (22), p.10304-10313
Hauptverfasser:	Park, Hea Jung, Yoon, Ung Chan, Lee, Hyang-Yeol, Cho, Dae Won, Mariano, Patrick S
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Cycloaddition Reaction Ethylenes - chemistry Exact sciences and technology General and physical chemistry Heterocyclic compounds Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives Heterocyclic compounds with only one n hetero atom and condensed derivatives Ketones - chemistry Molecular Structure Organic chemistry Organometalloidal and organometallic compounds Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Preparations and properties Pyridines - chemistry Si derivatives Silanes - chemistry
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