Laboratorio di Chimica Organica, Universita degli Studi di Wilano, via Saldini, 50 - 20133 Milano - Italia ... The enolates from 1,4 addition of lithium dim~th~lcuprat~ to 2_cyclohexenone, 2-cyclopentenone and methyl vinyl ketone, with acetyl chloride, qive only C-acylated products and not O-acylated products as previously reported in literature. ... During our work on the total synthesis of Pinguisone', a compound isolated from the liverwort Aneura Pinguis L2, we found that the ...