| 摘要 |
{PG,1 Cyanoacetates of the formula {r1 {tl,4 {rb R{HU 1{AB,6 {M,1 {AB,A {SB,21 R{HU 2{MR,1 C{AD,4 {M,1 {AB,0 H{MR,1 C{AB,4 {M,1 {AB,8 H{MR,1 {AB,0 H{MR,1 C{AB,4 O{AB,4 {M,1 {AD,0 O{MR,1 C{AB,4 {M,1 {AB,0 H{MR,1 {AB,8 H{MR,1 C{AB,4 C{M,1 {BN,4 {MX,1 {US,5 {BN,4 {US,5 {MX,1 {BN,4 {S,5 {MY,1 N{RE {PS {PS wherein R{HU 1 {L and R{HU 2 {L each independently is alkyl or cycloalkyl are prepared from cyanoacetic acid and the corresponding allylic halide in the presence of a hydrogen-halide acceptor and an inert organic solvent.
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