摘要:
The invention relates to the field of antibiotic compositions, both inside and outside the medical field. Presented is a new class of antibiotic compounds around the lead compound (3,4-dichloro-phenyl)-carbamic acid 2-isobutoxycarbonylamino-1-methyl-ethyl ester, which are especially useful for combating infections with gram-positive bacteria and especially MRSA.
摘要:
A photoacid compound having general structure: R-O(CF2)nSO3X wherein n is an integer between about 1 to 4; R is selected from the group consisting of: substituted or unsubstituted C1-C12 linear or branched alkyl or alkenyl, substituted or unsubstituted araalkyl, substituted or unsubstituted aryl, substituted or unsubstituted bicycloalkyl, substituted or unsubstituted tricycloalkyl, hydrogen, alkyl sulfonic acid, substituted or unsubstituted perfluoroalkyl, the general structure F((CF2)pO)m(CF2)q- wherein p is between about 1 to 4, m is between about 0 to 3 and q is between about 1 to 4, and substituted or unsubstituted partially fluorinated alkyl, halofluoroalkyl, perfluoroalkylsulfonic, or glycidyl; and X is selected from the group consisting of: organic cations and covalently bonded organic radicals.
摘要:
This invention relates to novel compositions of matter which either terminate in a sulfhydryl moiety or are disulfides. The compounds also include a terminal sulfonate or phosphonate moiety, and have many uses, such as toxicity reducing agents when administered with many antineoplastic agents.
摘要:
Les sulfonates de petrole produisant de meilleurs resultats dans les procedes ameliores de recuperation du petrole comprennent un produit de reaction obtenu a partir d'un melange d'une proportion majeure d'une reserve d'alimentation en huile de petrole, tel que du brut, ou une partie en brut, et d'une proportion mineure d'un additif, tel qu'un hydrocarbure oxygene, par exemple, un oxo-alcool ou autre, que l'on fait reagir avec SO3 dans des conditions de sulfonation, qui est melange avec environ 0,5 a 20% (en poids de melange de reaction) d'eau a une temperature se situant dans une plage comprise entre 50 et 150 C environ pendant une periode de temps relativement courte, le materiau resultant etant neutralise avec une base, telle que NaOH. Le materiau neutralise a base de petrole sulfone ainsi obtenu, dont on a eventuellement extrait les materiaux organiques non sulfones ou les sels, est ensuite mis sous forme d'une composition visqueuse pour etre injecte dans un puits de petrole en vue d'ameliorer la recuperation du petrole.
摘要:
To provide a method for producing an organic compound having a sulfo group by efficiently hydrolyzing an organic compound having a fluorosulfonyl group with a small number of steps with a small quantity of waste liquid. A method for producing an organic compound having a sulfo group, which comprises bringing an organic compound having a fluorosulfonyl group into contact with subcritical water at from 200 to 320°C to convert the fluorosulfonyl group into a sulfo group.
摘要:
To provide a method for producing an organic compound having a sulfo group by efficiently hydrolyzing an organic compound having a fluorosulfonyl group with a small number of steps with a small quantity of waste liquid. A method for producing an organic compound having a sulfo group, which comprises bringing an organic compound having a fluorosulfonyl group into contact with subcritical water at from 200 to 320°C to convert the fluorosulfonyl group into a sulfo group.
摘要:
A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): wherein R represents -A1-SO2R1; A1 is selected from an alkylene group, a heterocyclic ring, an aromatic ring; and -SO2R1 is a sulfonic group or of a derivative of a sulfonic acid.
摘要:
New compounds have been prepared from dicyclopentadiene bis(methylamine) which have the following formula
wherein substituents A, B, X and Y each are independently selected from radicals comprising hydrogen, C 2 to C 6 hydroxyalkyl; hydroxyethyl- and hydroxypropylsulfonic; meth- yienephosphonic; methylene-, ethylene- and propylenesul- fonic, C 2 to C 4 alkylcarboxylic acid radicals; and the alkali metal, alkaline earth metal, ammonia, and amine salts of the foregoing acids; and wherein at least one of A, B, X, and Y is other than hydrogen. These compounds are useful as ion control (chelating) agents in aqueous solutions. In a preferred embodiment, the compounds have threshhold (less than stochiometric amounts required) activity.
摘要:
A method for the preparation of 2-halogenoresorcinols having the following formula I where X represents a halogen atom and R and R, may be the same or different and represent a hydrogen atom or a free organic functional or functionally modified group or a hydrocarbon group, which may be substituted by one or more free organic functional or functionally modified groups and R and R, jointly may also represent a free organic functional or functionally modified group or a hydrocarbon group-which may be substituted by one or more free organic functional or functionally modified groups, and esters, ethers, or salts thereof. The method comprises sulfonating the corresponding resorcinols which do not contain a halogen in position-2 and then halogenating the sulfonic acids thus obtained. The halogenated sulfonic acids thereby obtained are subsequently protodesulfonated by acid hydrolysis and, if desired, any functional groups which may be present can be modified.