Efficient Synthesis of Enynecarbamates and Their Ring-Closing Metathesis/[4 + 2] Diels−Alder Cycloaddition: Synthesis of Hexahydroisoquinolines
作者:Alan R. Katritzky、Satheesh K. Nair、Tatyana Khokhlova、Novruz G. Akhmedov
DOI:10.1021/jo0340408
日期:2003.7.1
Enynes 5a-g were prepared in moderate to good yields from 1-(triphenylphosphoranylideneaminoalkyl)benzotriazoles. Ring-closingmetathesis of 5a-f afforded functionalizeddienes 6a-f, respectively, which were used in a Diels-Alder cycloaddition reaction in the synthesis of the corresponding hexahydroisoquinoline derivatives 7a-f.