Thieme Chemistry Journal Awardees - Where
Are They Now? Microwave-Assisted Rhodium-Catalyzed Decarbonylation
of Functionalized 3-Formyl-2<i>H</i>-chromenes:
A Sequence for Functionalized Chromenes like Deoxycordiachromene
作者:Stefan Bräse、Manuel Bröhmer、Nicole Volz
DOI:10.1055/s-0029-1217179
日期:——
3-Formyl-2H-chromenes which are readily accessible through an oxa-Michael reaction of salicylaldehydes and α,β-unsaturated aldehydes undergo a smooth decarbonylation reaction upon treatment with rhodium catalysts. With our method, a great variety of functionalized chromenes is accessible in a two-step sequence from salicylaldehydes.
Microwave-assisted palladium mediated decarbonylation reaction: synthesis of eulatachromene
作者:Akanksha、Debabrata Maiti
DOI:10.1039/c2gc35622h
日期:——
Microwave-assisted decarbonylation reactions were investigated using a palladium catalyst. A large number of aldehydes can be decarbonylated efficiently with lower catalyst loadings and under shorter reaction times compared to conventional heating. A successful decarbonylation led to the synthesis of natural product eulatachromene in three steps starting from easily available materials.