Mixed metal bases as promoters of 1,4-eliminations

Article abstract of DOI:10.1016/S0040-4020(01)82023-8

When treated with the LIDAKOR mixture, allyl type ethers very readily undergo 1,4-elimination to afford conjugated dienes (3 - 73). In typical cases, the reaction is brought about stereo- and regioselectively (2 and 7, respectively). Under suitable conditions, lithium dimethylamide or even lithium diisopropylamide adds to the dienes generated in situ thus leading to a variety of new allyl amines (5-8).