Spirans. V. 1 Synthesis of Spiro Ketones Employing Enamines2

HAPDE Jongh, FJ Gerhartl…

文献索引：De Jongh,H.A.P. et al. Journal of Organic Chemistry, 1965 , vol. 30, p. 1409 - 1413

被引用次数: 1

摘要

The Stork addition of the pyrrolidine enamines of cyclopentanone and cyclohexanone to dibenzalacetone gave after hydrolysis the monoaddition products IVa and IVb. These could easily be cyclized via a Michael reaction to the diphenyl spiro ketones Va and Vb. Both spiro ketones were reduced to the spiro monoketones VIIa and VIIb, while S'IIb was reduced to the diphenylspirohydrocarbon IX. The addition of cyclopentanone pyrrolidine enamine to ...