Author/Authors :
Asikainen، نويسنده , , Martta and Lewis، نويسنده , , William and Blake، نويسنده , , Alexander J. and Woodward، نويسنده , , Simon، نويسنده ,
Abstract :
Reaction of cuprates derived from R3MgBr/CuI/LiBr (R3 = n-alkyl) with R1CCCH(O2CR2)2 (R1 = sp2 hybridised substituent, R2 = mainly Me, alkyl, Ph) provides access to allenyl esters R1R3CCCH(O2CR2) (51–88%). Such species are not accessible via rearrangement of precursor propargylic R1R3C(O2CR2)CCH.
