Abstract: A method for synthesizing 2-(4-amidophenoxy)alkanoic acids and esters and 2-(4-aminophenoxy)alkanoic acids and esters by reacting a hydroxyaromatic ketone derivative with a 2-substituted alkanoic acid or ester under basic conditions and thereafter reacting with a hydroxylamine derivative and conducting a Beckmann Rearrangement in the presence of a catalyst with subsequent solvolysis.
Abstract: Compounds of formula X ##STR1## in which R.sub.6 is aryl, R.sub.7 is hydrogen, --OH or alkyl, R.sub.8 is alkyl, R.sub.9 is hydrogen, alkyl, alkenyl, aryl, furyl or --CCl.sub.3, when n is 1, R.sub.10 is alkyl, aryl, camphoryl, --CF.sub.3 or fluoro, or when n is 2, R.sub.10 is alkylene or arylene are latent curing catalysts for acid-curable stoving varnishes. On irradiation, the active curing catalysts which lead to acid-catalysed curing of the resins are formed from the compounds of the formula x.
Abstract: This invention relates to sulfonylureas of the formula ##STR1## These compounds are useful in killing weeds and in regulating the growth of cultivated plants.
Type:
Grant
Filed:
June 20, 1985
Date of Patent:
May 2, 1989
Assignee:
Celamerck GmbH & Co. KG.
Inventors:
Rudolf Mengel, W. Pfleiderer, Gerbert Linden, Gerhart Schneider
Abstract: A phosphorus free or a low phosphorus containing lubricant composition is provided by formulating the composition with an additive of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl of 1 to about 7 carbons, aryl, aralkyl or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; X is O or S; a is 1 or 2; R.sub.3 and R.sub.4 are independently H, alkyl or aryl; and Z is ##STR2## wherein R.sub.5 is hydrogen, alkyl, or aralkyl, and ##STR3## wherein Y is H, OH, R.sub.6 where R.sub.6 is alkyl, aryl or aralkyl, OR.sub.6, OR.sub.7 --OH, where R.sub.7 is alkylene of 1 to about 7 carbon atoms, and NR.sub.8 R.sub.9 where R.sub.8 and R.sub.9 are independently hydrogen, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when a is 1, Y is not OR.sub.6.
Abstract: A compound of the formula: ##STR1## useful as a fungicidal agent against phytopathogenic fungi, particularly their strains resistant to benzimidazole, thiophanate and/or cyclic imide fungicides.
Abstract: Oxime sulfonates of formula I ##STR1## wherein Y is a polymerizable unsaturated group or epoxide group or an --OH, --NHR.sup.5, --COOH, COOR.sup.6, --COCl, --CH.sub.2 Hal, --SO.sub.2 Cl or --NCO group, Z is an (x+y)-valent connecting member, R.sup.1 and R.sup.2 are monovalent organic radicals, m is 0 or 1, x is 1 or 2 and y is 1 or 2, can be converted into polymers which can be thermally or photochemically dissociated to form free sulfonic acid groups. Said polymers can therefore be used as photoresists which can be developed with aqueous alkalis.
Type:
Grant
Filed:
April 11, 1986
Date of Patent:
April 5, 1988
Assignee:
Ciba-Geigy Corporation
Inventors:
Kurt Dietliker, Werner Rutsch, Godwin Berner, Max Hunziker, Christopher G. Demmer
Abstract: Certain novel aryl sulfonyl fluorides, their preparation, and their use in inhibiting serine proteases with chymotrypsin-like and elastase-like specificity.
Abstract: In an improved process of converting a 1,2-epoxy-2-phenylbutane or a 1,2-epoxy-2-phenylpentane to a 2-hydroxy-2-phenylbutylsulfonate, sulfamate, or halide, or the corresponding 2-hydroxy-2-phenylpentyl compound, respectively, by the reaction at about 40.degree. to 120.degree. C. in the presence of an organic solvent of the requisite epoxybutane or epoxypentane with a proton source and a nucleophile. The proton source can be a free strong acid such as a sulfonic, sulfamic acid, or hydrohalide acid, or the proton source can be derived from an equilibrium system comprising a free strong acid and weak base in equilibrium with the respective deprotonated strong acid and protonated weak base. The process is carried out in one step with reduction or avoidance of aldehyde formation by rearrangement of the epoxyalkane.
Abstract: This invention relates to novel herbicidal cycloalkenyl acetamides. These acetamides are useful in the inhibition of undesired vegetation and exhibit excellent selectivity in crops of cultivated plants, particularly in crops of flooded rice.