A concise route to iboga-analogues via the formation of suitably substituted-2-indoles
作者:Goutam Kumar Jana、Surajit Sinha
DOI:10.1016/j.tetlet.2010.02.028
日期:2010.4
A concise route to iboga-analogues has been developed. Important steps include a Pd-catalyzed Sonogashira coupling of Boc-2-idodaniline with terminal alkynes and the formation of 2-substitutedindoles in the presence of tetrabutylammonium fluoride to give the key intermediate, dehydroisoquinuclidine-containing indole. The final step cyclization between indole-3-position and dehydroisoquinuclidine ring
Electronically modified amine substituted alkynols for regio-selective synthesis of dihydrofuran derivatives
作者:Vijay V、Manjusha V. Karkhelikar、B. Sridhar、Nedaossadat Mirzadeh、Suresh Bhargava、Pravin R. Likhar
DOI:10.1039/c5ob02033f
日期:——
efficient and simple approach has been developed for the regio-selective synthesis of iodo-substituted dihydrofurans from amine substituted alkynols. The resulting iodo-substituted dihydrofurans have been further diversified by C–C couplings and C–N coupling reactions to afford a diverse range of substituted dihydrofuranderivatives.