- Rapid Synthesis and Interconversions of Fatty 4,5-Dihydroimidazoles and Fatty 1,4,5,6-Tetrahydropyrimidines. Thermal Cyclizations of Fatty Amides Involving Phenyl Phosphorodiamidate
-
Brief heating of ethane-1,2- and propane-1,3-bis-fatty amides at 235-250 deg C with phenyl phosphorodiamidate gave routes to high yields of 2-fatty alkyl-4,5-dihydroimidazoles and 1,4,5,6-tetrahydropyrimidines.Ready interconversions of fatty dihydroimidazoles and tetrahydropyrimidines, involving diamine exchange with solvent, were observed on brief heating of these materials in ethylenediamine and trimethylenediamine as solvents.
- Butler, Richard N.,Thornton, John D.,O'Regan, C.B.
-
p. 2197 - 2200
(2007/10/02)
-
- N-(fluorodichloromethylthio)-benzanilides
-
New and valuable N-(fluorodichloromethylthio)-benzanilides, a process for their manufacture, fungicides containing these compounds as active ingredients, and a method of combatting fungi with these compounds.
- -
-
-
- Amino-phosphonic-sulfonic acids
-
This invention relates to compounds characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both propane sultone and with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent. They have a wide variety of uses, for example as scale and corrosion inhibitors, chelating agents, etc.
- -
-
-