Synthesis of Small and Large Fused Bicyclic Compounds by Tandem Dienyne Ring-Closing Metathesis
摘要:
A tandem ring-closing metathesis reaction using ruthenium catalyst was carried out to synthesize various fused bicyclic compounds containing both small and large rings. Fast ring-closure of the small ring and slow ring-closure of the large ring resulted in the formation of only one Isomer. Further manipulation such as the Diels-Alder reaction was carried out to prepare a complex molecule containing multiple rings of different sizes.
Synthesis of Small and Large Fused Bicyclic Compounds by Tandem Dienyne Ring-Closing Metathesis
作者:Hyeon Park、You-Lee Hong、Yongjoo B. Kim、Tae-Lim Choi
DOI:10.1021/ol101233k
日期:2010.8.6
A tandem ring-closing metathesis reaction using ruthenium catalyst was carried out to synthesize various fused bicyclic compounds containing both small and large rings. Fast ring-closure of the small ring and slow ring-closure of the large ring resulted in the formation of only one Isomer. Further manipulation such as the Diels-Alder reaction was carried out to prepare a complex molecule containing multiple rings of different sizes.
An easy preparation of iodoacetylenes
作者:Yves Brunel、Gérard Rousseau
DOI:10.1016/0040-4039(95)00324-6
日期:1995.4
Reaction of terminal acetylenes with bis(sym-collidine)iodine (I) hexafluorophosphate in methylene chloride leads in good yields to the formation of iodoacetylenes.