Abstract
The title compound crystallized in triclinic space group P1 with cell parameters a = 6.6634(3)Å, b = 12.3296(6)Å c = 17.0338(8)Å, α = 86.394(1)°, β = 81.052(1)°, γ = 85.002(1)°, V = 1375.43(11)Å3, Z = 2, Dcal = 1.226 Mg/m3 at T = 100(2)K. The structure was refined by full-matrix least-squares procedures to find R1 = 0.0480 and wR2 = 0.1143 for 5663 reflections. All atoms in the furo-pyran ring are in a plane, except C6. All three cyclohexyl rings of isocyanides adapt chair conformation, and their plane alignment is noncoplanar with respect to furo-pyran plane. The spiro cycloheptyl ring has a chair conformation.
