Abstract: Hexachloroacetone and a vicinal alkylene diol react when heated together in the presence of a weak base to produce chloroform and the cyclic alkylene carbonate. The chloroform distills from the reaction mixture substantially as it is formed and the alkylene carbonate is readily separable from the residual mixture.
Abstract: Vicinal epoxides and alkylene dihalides are produced by decomposing a .beta.-haloalkyl carbonate of the general formula ##STR1## in the presence of a quaternary ammonium or phosphonium salt.
Abstract: A lower alkyl trichloroacetate and a vicinal alkylene diol react when heated together in the presence of a weak base to produce chloroform, a lower alkanol, and the cyclic alkylene carbonate. The chloroform and lower alkanol distill from the reaction mixture substantially as formed and the alkylene carbonate is readily separable from the residual mixture.
Abstract: Cyclic ethers such as tetrahydrofuran, dioxane, and tetrahydropyran are produced by reacting dimethyl carbonate with an appropriate primary dihalide in the presence of a quaternary ammonium or phosphonium salt.
Abstract: Mixtures of curable neutral and acid-catalyzed phenol-aldehyde resins and portland cement have been found to provide fast-curing, durable adhesive bonds for wood, masonry, and the like which for many applications are of improved strength as compared to those obtained with known bonding agents. Of particular interest are the compositions where the resin is an arylamine-modified phenol-formaldehyde resin.
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