Silicon-initiated carbonylative carbotricyclization and [2+ 2+ 2+ 1] cycloaddition of enediynes catalyzed by rhodium complexes

B Bennacer, M Fujiwara, SY Lee…

Index: Bennacer, Bibia; Fujiwara, Masaki; Lee, Seung-Yub; Ojima, Iwao Journal of the American Chemical Society, 2005 , vol. 127, # 50 p. 17756 - 17767

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Citation Number: 74

Abstract

The reaction of dodec-11-ene-1, 6-diynes or their heteroatom congeners with a hydrosilane catalyzed by Rh (acac)(CO) 2 at ambient temperature and pressure of CO gives the corresponding fused 5-7-5 tricyclic products, 5-oxo-1, 3a, 4, 5, 7, 9-hexahydro-3 H- cyclopenta [e] azulenes or their heteroatom congeners, in excellent yields through a unique silicon-initiated cascade carbonylative carbotricyclization (CO-SiCaT) process. It has also ...