BUTLIN, ROGER J.;HOLMES, ANDREW B.;MCDONALD, EDWARD, TETRAHEDRON LETT., 29,(1988) N 24, 2989-2992
作者:BUTLIN, ROGER J.、HOLMES, ANDREW B.、MCDONALD, EDWARD
DOI:——
日期:——
Synthesis of ethynylazaspirocycloundecene: approach to side chain unsaturated histrionicotoxins
作者:Roger J. Butlin、Andrew B. Holmes、Mcdonald Edward
DOI:10.1016/0040-4039(88)85067-6
日期:1988.1
A short synthesis of N-benzyl-7-ethynyl-1-azaspirocyclo[5.5]undec-7-ene (3) from the spirocyclic ketolactam (5) via the vinyl iodide (8) is described. An unusual allylic rearrangement of the lactam (9) occurred during reaction with LiAlH4.