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.
Synthesis of fused multicyclic compounds containing macrocycles by dienyne ring-closing metathesis and Diels–Alder reactions
作者:Hyeon Park、Tae-Lim Choi
DOI:10.1039/c1ob05683b
日期:——
rings contained 1, 3-dienes that underwent a further modification reaction, such as Diels–Alder, to produce more complex compounds. These Diels–Alderreactions produced tri- and tetracyclic compoundscontaining a macrocycle with single diastereomers, suggesting that the methodology demonstrated here could be a powerful tool for rapid preparation of highly complex molecules.