β Scribed by L.B.J. Vertegaal; M. van der Steeg; A. van der Gen
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Fecapentaene-12 1 displays an unexpected reactivity when treated with hydrochloric acid in aqueous solvents. Instead of forming the unsubstituted aldehyde 2,4,6,8_dodecatetraenal 2, a completely different pathway is observed, resulting in the exclusive formation of lo-methoxy-2,4,6,8_dodecatetraenal 3a (methanoVwater) or IO-hydroxy-2,4,6,8_dodecatetraenal 3b (tetrahydrofuran/water).
π SIMILAR VOLUMES
Measurements of density for glycerol-water solutions have been carried out along a co-existing curve by using the pycnometer method in the range of temperatures from 293 to 363 K and in the range of concentration from 0.225 to 0.552 mol fraction of glycerol. It's shown that the concentration curve o
Mannich reaction between dimethyl (methylene) ammonium chloride and a silyl enol ether gives a regiochemical result opposite to that obtained from the derived lithium enolate and the same salt.
Although thc propcrtks of glyccrol itself nrc wcll known, and its indiistrinl nitd mcdicinnl spplicntions iirc very varied (see Dnrkc nhd Lewis, CIIESI. k XND.,