Although the literature contains many references to the reaction of formaldehyde with o-and p-nitrophenols, a study of the m-isomer has received little attention. A German patent (1) describes the preparation of 2,2'-dinitro-4,4'-dihydroxydiphenyImethane from m-nitrophenol, although we were unable to duplicate this claim. More recently, Mehta and Ayyar (2) obtained 5-nitro-l ,3-benzodioxane from the -substituted phenol.
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