7,14-Bis(4-methoxy-phen-yl)-11,11-dimethyl-1,4,10,12-tetra-oxa-dispiro-[4.2.5.2]penta-decane-9,13-dione
Abstract:
In the title compound, C(27)H(30)O(8), the cyclo-hexane ring is in a chair conformation, while the five-membered ring adopts an envelope conformation. The 1,3-dioxane ring is oriented with respect to the benzene rings at dihedral angles of 53.38 (3) and 55.31 (3)°, while the dihedral angle between the benzene rings is 71.56 (3)°. In the crystal structure, inter-molecular C-H⋯O inter-actions link the mol-ecules into chains.
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In cyclohexane, the substituents can occupy different positions generating distinct isomers.
In cyclohexane, the substituents can occupy different positions generating distinct isomers.
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Removing one hydrogen from the intervening CH2 group with both...
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The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
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