Abstract: Hydroxyalkane diphosphonic acids having the formula ##STR1## wherein X is a member selected from the group consisting of ##STR2## and their water-soluble salts; as well as the process of preparing the same.The compounds are excellent sequestering agents, especially for alkaline earth and earth metal ions. They are stabilizers for percompounds and are useful in the delaying of the setting times for gypsum. In addition, the compounds are useful in cosmetic preparations, such as toothpastes and mouthwashes where they prevent formation of tartar and plaque and are useful in therapy in the treatment of diseases related to the abnormal deposition or dissolution of difficultly soluble calcium salts in the animal body.

Abstract: Heterocyclic phenyl ethers of the formula ##STR1## in which (R).sub.n is hydrogen or up to three identical or different substituents selected from halogen, CF.sub.3, NO.sub.2, CN, alkyl, alkoxy and alkylthio, and A is oxygen, sulfur or N(C.sub.1 -C.sub.4)alkyl, provided that the --OH group is not in para-position if (R).sub.n is hydrogen and A is sulfur, are useful as starting materials for the manufacture of selective herbicides.

Abstract: A process for preparing a family of orange polymeric colorants having a plurality of units of the chromophore ##STR1## is disclosed. R.sub.1 and R.sub.2 are hydrogens, lower alkyls or alkoxies, nitros, halos or sulfonates, R.sub.3 is benzyl, benzyl sulfonate, lower alkyl or alkyl sulfonate, R.sub.4 is hydrogen or lower alkyl. With the disclosed process, the chromophore units, less the R.sub.3 substituent, are bonded to an organic polymer backbone. The R.sub.3 substituent is added thereafter in a separate second step.

Abstract: New substituted acyl derivatives of amino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors. The compounds claimed in this application are those wherein B is indolyl-lower alkylene.

Abstract: This invention relates to novel N-substituted oxobenzothiazolines and to their use in a method of regulating leguminous plant growth as well as to plant growth regulant compositions.

Abstract: 11-Desoxy-15-thia-16-aryl-.omega.-tetranor prostanoid compounds having a carboxyl, tetrazole, or substituted imide at C.sub.1, having prostaglandin-like anti-ulcer activity and their synthesis from the 11-desoxy "Corey Lactone".

Abstract: A process for the recovery of materials suitable for recycle to the manufacture of alkoxy or aryloxyphosphazenes including, inter alia, solvents, hydroxy compounds, acid acceptors and the like, from flash distillation of the washed phosphazene product together with a second vapor stream produced from the aqueous wash of the crude phosphazene product, whereby an aqueous phase and an organic phase are produced and recyclable materials are extracted from the aqueous phase into the organic phase, separating the organic phase from the aqueous phase and separating the organic phase into components by conventional methods which are suitable recycle streams for the phosphazene product manufacturing process.

Abstract: The present invention is concerned with new and novel 4-hydroxyaporphine derivatives and with the preparation thereof.

Abstract: 1,4-benzodiazepin of the formula ##STR1## wherein R is a low molecular straight or branched alkyl and X is halogen or trifluoromethyl, and pharmaceutically acceptable acid addition salts of these benzodiazepins. The benzodiazepins are made by heating an acyldiamine in the presence of phosphorus oxychloride at the latter's boiling point followed by reacting the resulting mixture of 7-member and 8-member compounds with an alkali metal alkoxide.

Abstract: The uriedoalkyl substituted tetrazolethiol compounds of this invention are used for preparing 7-acyl-3-(uriedoalkyl substituted tetrazolythiomethyl)-cephalosporins.

Abstract: The destructive oxidation of oxalic acid is catalyzed by a vanadium compound in liquid phase oxidation. The oxalic acid is contacted with oxygen in the presence of a vanadium compound in aqueous solution and the oxidation proceeds selectively without any appreciable oxidation of other components of the reaction medium such as acetaldehyde and ethylene. The oxidation is performed at temperatures between 30.degree. and 300.degree.C. and atmospheric or superatmospheric pressure.