Cyclic diacylcarbene generated from iodonium ylides and diazodiketones

Y Hayasi, T Okada, M Kawanisi

文献索引：Hayasi,Y. et al. Bulletin of the Chemical Society of Japan, 1970 , vol. 43, p. 2506 - 2511

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被引用次数: 32

摘要

The preparative method of iodonium ylides, Ph–\ overset⊕ I–\ overset\ ominusC (COR)(COR′), is improved by condensation of active methylene compounds, H 2 C (COR)(COR′), with iodosobenzene in the presence of acetic anhydride. Thermal and Cu- catalyzed decomposition of iodonium ylides can be differentiated and both are explained in terms of diacylcarbene intermediate with different multiplicity. For the sake of comparison ...