Titlebook: Organic Reaction Mechanisms; 40 Solved Cases Mar Gómez Gallego,Miguel A. Sierra Textbook 2004 Springer-Verlag Berlin Heidelberg 2004 Anorga

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macular-edema

Level 1 — Case 2 Sulfenylation of Indole3-Indolyl sulfides . are easily prepared by sulfenylation of indoles with sulfenyl chlorides. The mechanism of the sulfenylation is well known and follows the usual S.Ar-type substitution pathway depicted in Scheme 2.1.

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Level 1 — Case 7 NaBH4 Reduction of α,β-Unsaturated Chromium Carbene ComplexesConjugated chromium Fischer alkoxy carbene complex . is quantitatively transformed into a mixture of .-vinyl ether . and .-allyl ether . by NaBH. reduction in EtOH (Scheme 7.1).

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Level 1 — Case 12 Elimination Reactions of Benzaldehyde ,-Benzoyloximes.- and .-Benzaldehyde .-benzoyloximes . and ., give benzonitriles in quantitative yield upon treatment with DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) (Scheme 12.1).

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Level 1 — Case 16 Light-Induced Cycloadditions of ,-Phthaloyl α-Amino AcidsThe irradiation of .-phthaloyl αamino acids . in the presence of electron-deficient olefins, such as methyl acrylate, gives benzopyrrolizidines . in good yields (Scheme 16.1).

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