Knochel’s method

Knochel s method provided the pentameric peptide 224. Hydrogenation followed by treatment of the resulting amino acid with EDC and HOBt afforded macrocycle 225. Hydrolysis of methyl ester 225, and imidazolone formation via the acid chloride, followed by Boc deprotection provided kapakahine F (219) in significant quantity. Final coupling of 219 with Boc-Phe-OH followed by Boc removal afforded kapakahine B (218) (Scheme 40). 

As an extension to C-H arylations, Baudoin and co-workers reported the intramolecular alkenylation of unactivated C(sp )-H bonds. Inspired both by Knochel s intramolecular C(sp )-H alkenylation of activated benzylic positions [89, 90] and by Ohno s indoline synthesis [91], they developed a unique route toward hexahydroindoles (Scheme 17) [92]. This method afforded sp -rich products in... 

Klopper W, Kutzelnigg W, Muller H, Noga J, Vogtner S (1999) Extremal Electron Pairs - Application to Electron Correlation, Especially the R12 Method. 203 21-42 Knochel P, see Betzemeier B (1999) 206 61-78... 

Alfaro, J., Apfel, T., Diercks, H., Knochel, A., Gupta, R. S., and Todter, K., Trace analysis of the radiounclides 90Sr and 89Sr in environmental samples iii Development of a fast analytical method, Angew. Chem. Int. Ed. Engl., 34,186-189,1995. 

Kirtman B (1999) Local Space Approximation Methods for Correlated Electronic Structure Calculations in Large Delocalized Systems that are Locally Perturbed. 203 147-166 Klopper W, Kutzelnigg W, Muller H, Noga J, Vogtner S (1999) Extremal Electron Pairs - Application to Electron Correlation, Especially the R12 Method. 203 21 -42 Knochel P, see BetzemeierB (1999) 206 61-78 Kozhushkov SI, see de Meijere A (1999) 201 1 -42 Kozhushkov SI, see de Meijere A (2000) 207 89-147 Kozhushkov SI, see de Meijere A (2000) 207 149-227... 

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