Synthesis and solvolytic rearrangement of epimeric 4-methanesulfonyloxy-4a-methyl-trans-1,2,3,4,4a,9,10,10a-octahydrophenanthrene and their 7-methoxy and 1,1-dimethyl derivatives. Conformationally rigid homobenzylic systems
Synthesis and solvolytic rearrangement of epimeric 4-methanesulfonyloxy-4a-methyl-trans-1,2,3,4,4a,9,10,10a-octahydrophenanthrene and their 7-methoxy and 1,1-dimethyl derivatives. Conformationally rigid homobenzylic systems
DBU Promoted Deformylative/Dehalogenative Difunctionalization to Access β‐Bromovinyl Aldehydes Derived from Tetralones**
作者:Madan Sau、Sapana Dubey、Shreya Roy、Shubhankar Samanta、Tapas Das
DOI:10.1002/ejoc.202300788
日期:——
Metal-free deformylative/dehalogenative carbonylation, Michael addition of β-bromovinyl aldehydes for the synthesis of δ-oxo esters and vinylethers have been reported. Nucleophilic and organo-catalytic behaviour of DBU is explored and the regeneration of the parent starting material from the vinylether is also highlighted.