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
作者:Richard A. Haack、Kenneth R. Beck
DOI:10.1016/s0040-4039(00)99532-7
日期:1989.1
Substitutedspiro[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 substitutedspiroderivative.