Tetrahedron Letters

Synthesis of substituted spiro [4.5] deca-3, 6, 9-triene-2, 8-diones: an expeditious route to the spiro [4.5] decane terpene skeleton

RA Haack, KR Beck

Index: Haack, Richard A.; Beck, Kenneth R. Tetrahedron Letters, 1989 , vol. 30, # 13 p. 1605 - 1608

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Citation Number: 30

Abstract

Abstract Substituted spiro [4.5] decanes are prepared in two steps in fair to moderate yield. A substituted 4-methoxyphenylacetyl chloride, prepared from the corresponding acid, is reacted with a substituted acetylene (or acetylene gas) in the presence of aluminum chloride in methylene chloride at 0 C to produce the corresponding substituted spiro derivative.