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Updated: May 26, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
4,6-Di-tert-butyl-2,8-dimeth-oxy-dibenzo[b,d]furan
Abstract:
In the title compound, C(22)H(28)O(3), the dihedral angle between the benzene rings is 3.47 (13)° and the five-membered furan ring is essentially planar with a largest deviation of 0.0052 (14) Å. The Csp(2)-Csp(2) bond length between the two benzene rings [1.443 (3) Å] is considerably shorter than those between the benzene and tertiary C atoms [1.538 (3) and 1.530 (3) Å], which are sp(2)-sp(3) hybridized. C-H⋯π inter-actions involving the furan and benzene rings are found in the crystal structure.
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