C. Henneuse et al., DI[BIS(4-METHOXYPHENYL)METHYL]ETHER AS DEHYDRATION PRODUCT OF 4,4'-DIMETHOXYBENZHYDROL UNDER UNUSUALLY MILD CONDITIONS, Bulletin de la Societe chimique de France, 132(3), 1995, pp. 333-336
4,4'-Dimethoxybenzhydrol 1b was readily dehydrated by the isocyanate r
eagent 5 to furnish di[bis(4-methoxyphenyl)methyl] ether 4b. This symm
etrical ether was similarly obtained upon treatment of 1b with diethyl
aminosulfur trifluoride (DAST).