I. Ryu et al., Conjugate addition of zincates derived from ketone alpha,beta-dianions to enones. An access to unsymmetrical 1,6-diketones, TETRAHEDR L, 41(30), 2000, pp. 5689-5692
The conjugate addition of organozincates derived from ketone alpha,beta-dia
nions to enones was examined. Good yields of unsymmetrical 1,6-diketones we
re obtained by this reaction. A mixed zincate consisting of the dianion and
methyllithium in a 2:1 ratio gave results which were comparable to those o
f an unmixed dianion zincate. (C) 2000 Elsevier Science Ltd. All rights res
erved.