TAYLOR, E. C.;DAVIES, H. M. L., TETRAHEDRON LETT., 1983, 24, N 49, 5453-5456
作者:TAYLOR, E. C.、DAVIES, H. M. L.
DOI:——
日期:——
The first direct observation of an allylic [3,3] sigmatropic cyanate–isocyanate rearrangement
作者:Klaus Banert、Antje Melzer
DOI:10.1016/s0040-4039(01)01212-6
日期:2001.8
Evidence is presented that the [3,3] sigmatropic rearrangement of simple allyl cyanates to give allyl isocyanates proceeds much more rapidly than the analogous reaction of propargyl cyanates. Nevertheless, a substituted allyl cyanate is isolated for the first time, and the activation parameters of its [3,3] sigmatropic isomerization are measured.
Rhodium(II) acetate-catalyzed reaction of ethyl 2-diazo-3-oxopent-4-enoates: Simple routes to 4-aryl-2-hydroxy-1-naphthoates and β,β-unsaturated esters. The dianion of ethyl 4-(diethylphosphono)acetoacetate as a propionate homoenolate equivalent
作者:Edward C. Taylor、Huw M.L. Davies
DOI:10.1016/s0040-4039(00)94110-8
日期:1983.1
Rhodium(II) acetate-catalyzed decomposition of ethyl 2-diazo-3-oxopent-4-enoates results in the formation of either 4-aryl-2-hydroxy-naphthoates or β,γ-unsaturated esters. In the latter transformation, the dianion of 4-(diethylphosphono)acetoacetate functions as a propionate homoenolate equivalent.