Synthesis and crystal structure analysis of substituted bi­cyclo­[3.3.1]nona­nones

Abstract

A set of novel bi­cyclo­[3.3.1]nona­nones were synthesized and structurally elucidated by NMR, HRMS and X-ray crystallography.

A set of novel bi­cyclo­[3.3.1]nona­nones, namely, 4-methoxybi­cyclo­[3.3.1]non-3-ene-2,9-dione, C₁₀H₁₂O₃ (1), 4,9,9-tri­methoxybi­cyclo­[3.3.1]non-3-en-2-ol, C₁₂H₂₀O₄ (2), 4-meth­oxy-6-methyl-1-(3-methyl­but-2-en-1-yl)-6-(4-methyl­pent-3-en-1-yl)bi­cyclo­[3.3.1]non-3-ene-2,9-dione, C₂₂H₃₂O₃ (3) and 4-(tert-but­yl)-4-hy­droxy-2-meth­oxy-8-methyl-7-(3-methyl­but-2-en-1-yl)-8-(4-methyl­pent-3-en-1-yl)bi­cyclo­[3.3.1]non-2-en-9-one, C₂₆H₄₂O₃ (4), were synthesized and structurally elucidated by NMR, HRMS and X-ray crystallography.