Abstract: Compounds of the formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.18 alkyl,R.sub.2 is hydrogen or C.sub.1 -C.sub.18 alkyl, andA is a substituted primary or secondary aliphatic or alicyclic, aromatic or araliphatic amine, in which the substituents are identical or different, a heterocyclic amine or a hydrazine derivative.

Abstract: Adducts of alkylphosphorous triamides with alpha, beta-unsaturated carbonyl compounds provide novel sulfur-free load-carrying additives for various organic compositions, e.g., lubricant oils.

Abstract: This invention relates to the preparation of .alpha.-amino phosphonic acids by the direct addition of phosphorous acid to imines.

Abstract: A phosphonic acid ester of the formula: ##STR1## and R is a lower alkyl, exhibits a calcium-antagonistic activity. Pharmaceutical compositions containing the same are useful in prophylaxis and treatment of ischemic heart diseases such as angina pectoris, myocardial, infarction, etc. and hypertension.

Abstract: This invention relates to aliphatic phosphorous containing compounds which are useful as herbicides. Additionally, they demonstrate tolerance towards desired, crops, e.g. wheat and rice.

Abstract: This invention relates to phosphorus containing compounds which are useful as herbicides.Additionally, they demonstrate tolerance towards desired crops, e.g., cotton, soybeans and sugarbeets.

Abstract: This invention relates to phosphorus containing compounds which are useful as herbicides.Additionally, they demonstrate tolerance towards desired crops, e.g., cotton, soybeans and sugarbeets.

Abstract: Hydrocarbylpoly(oxyalkylene) aminophosphorylamido esters are monoesters and diesters of polyether alcohols and phosphoramidic acids. The esters find use as lubricating oil additives which impart lubricity to the oil.

Abstract: This invention relates to the preparation of pyridyl-4-phosphonates by reacting phosphite ester salts with pyridines which are N-substituted with sterically hindering or "bulky" groups such as "bulky" phenyl groups, for example trityl, .phi..sub.3 C-.

Abstract: New mercaptoacylpyrrolidine- and mercaptoacylpiperidine phosphonic acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors.

Abstract: Quaternary nitrogen-heterocyclic phosphonates wherein the phosphonate group is ortho- or para- to the nitrogen heterocyclic group, where the compounds are characterized as follows: ##STR1## wherein the dotted line represents a cyclic structure which cyclic structure may be the sole cyclic structure, or may be attached to other cyclic groups, where R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, alkaryl, aralkyl, etc., and X is an anion such as halogen, a sulfite, a sulfate, a sulfonate-containing group, etc.These nitrogen-heterocyclic phosphonates are prepared by reacting an aromatic nitrogen-heterocyclic compound, wherein the nitrogen atom is in the form of a quaternary alkoxy derivative (N--OR hereinafter defined) with a phosphite salt, preferably in the form of an ester of the phosphite, as exemplified by the following equation: ##STR2## Quaternaries of these compounds are prepared by further reaction with a quaternizing agent.

Abstract: Preparation of a phosphorylated amidine of the formula ##STR1## wherein X is oxygen or sulfur and R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are various organic radicals, which comprises reacting a phosphoric acid ester-amide of the formula ##STR2## with a carboxamide of the formula ##STR3## at a temperature between about 0.degree. and 50.degree. C., and then reacting the mixture with a base. Advantageously the reaction is effected at about 0.degree. to 15.degree. C. in the presence of an aliphatic or aromatic optionally chlorinated hydrocarbon or an alcohol as an inert solvent, and in the presence of a catalyst.

Abstract: O-(1-Fluoro-2-halo-ethyl)(thiono)phosphoric(phosphonic) acid ester-amides of the formula ##STR1## in which R and R.sup.1 independently represent hydrogen, alkyl, haloalkyl or cyanoalkyl, orR and R.sup.1 conjointly with the nitrogen atom form a heterocyclic ring which can optionally be interrupted by further hetero-atoms,R.sup.2 represents ##STR2## alkoxy, halogenalkoxy or alkyl, Hal represents chlorine or bromine, andX represents oxygen or sulphur, which possess insecticidal acaricidal and nematocidal properties.

Abstract: Compounds of the formulas ##STR1## WHEREIN: X represents oxygen or sulfur;Z represents the residue of a hydroxyl-containing moiety;R.sub.1 and R.sub.2 in formula (1) may be the same or different and individually represent alkyl, cycloalkyl or aryl and, together with the common nitrogen atom, represent a 5 or 6-member ring containing oxygen, sulfur or nitrogen or combination thereof;Nr.sub.1 r.sub.2 in formula (2) represent a 5 or 6-member ring containing oxygen, sulfur or nitrogen or combination thereof;N represents an integer having a value of 2 or greater and is equal to the number of hydroxyl groups on the original hydroxyl-containing moiety,Are prepared by reacting a phosphorohalidate with an amine in an organic solvent containing aqueous alkali metal or ammonium hydroxide.The compounds are useful as flame retardants for natural and synthetic materials.

Abstract: Compounds of the formula ##STR1## in which R represents halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.3 -haloalkyl, C.sub.1 -C.sub.2 alkoxy, NO.sub.2 or S-CH.sub.3, R.sub.1 represents hydrogen or C.sub.1 -C.sub.6 -alkyl, R.sub.2 represents C.sub.1 -C.sub.6 -alkylamino, C.sub.3 -C.sub.8 -alkenylamino, N,N-di-(C.sub.1 -C.sub.6 -alkylamino), C.sub.5 -C.sub.8 -cycloalkylamino or a saturated N-heterocycle having from 4 to 8 C-atoms altogether of which 1 or 2 may stand in the side chain and in which one CH.sub.2 group of the cycle may be replaced by oxygen or sulfur, R.sub.3 represents C.sub.1 -C.sub.6 -alkyl, X is oxygen or sulfur and n is zero or a whole number in the range of from 1 to 3 exhibit a good herbicidal effect on some economically important weed grasses and dicotyledonous weeds and simultaneously they have excellent insecticidal and acaricidal properties.

Abstract: Anti-allergic 4-hydroxy-3-quinoline-2-one-3-phosphonic acid esters are prepared by reacting an isatoic anhydride with the carbanion resulting from the treatment of phosphono acetic acid alkyl esters with a proton abstracting agent.

Abstract: Compounds of the formula ##STR1## wherein: Z represents a radical selected from the group consisting of alkyl or aryl radicals;R.sub.1 and R.sub.2 may be the same or different and individually represent a radical selected from the group consisting of alkyl, cycloalkyl or aryl radicals; andR.sub.1 and R.sub.2 together with their common nitrogen atom represent a heterocyclic ring,Impart flame retardant properties to natural and synthetic polymers.