摘要:
This invention relates to novel compounds with ester linkage(s) capped with either electron deficient olefinic linkage(s) or group(s) or reactive functional groups (termed herein as "active methylene reagents"), and curable compositions prepared therefrom.
摘要:
A hydroxyeicosenoic acid analog represented by the following Formula (I), the bond represents a cis-vinylene group or an ethynylene group; Y represents CH2, O or S(O)p wherein p is 0, 1 or 2; m represents an integer of 1 to 4 inclusive; n represents an integer of 0 to 3 inclusive; the sum of m and n is an integer of 3 to 7 inclusive; R1 represents a C1-4 alkyl group or a C3-8 cycloalkyl group; R2 represents a hydrogen atom or a methyl group; R3 represents COR4, a nitrile group, a halogen atom, a tetrazole group or a thiazolidinedione group; R4 represents OR6, NHR6, N(OH)R?6, NHSO2R5¿, glycerol or functionalized glycerols; R5 represents a C¿1-15? alkyl group, a C6-10 aryl group or a C7-14 aryl group substituted with alkyl groups, halogens or amino groups; R?6¿ represents a hydrogen, a C¿1-10? alkyl group or a C1-10 alkyl group substituted with a hydroxyl group, or a pharmaceutically acceptable salt or hydrate thereof. The compounds of the present invention are useful as an elastase release inhibitor.
摘要:
A novel substituted open-chain terpene compound of general formula (I) which is useful as an intermediate for the synthesis of sarcophytol A, wherein R is (α), (β), or (ψ) (wherein R¹ is cyano or formyl R² is hydrogen or CO₂R³, R³ is C₁ to C₄ alkyl, and R⁴ is -C=CH or -CH=CH₂); X is hydrogen, hydroxyl, halogen, OR⁵ or OSO₂R⁶ (wherein R⁵ is hydrogen, 1-alkoxyalkyl, tetrahydrofuryl, tetrahydropyranyl, acyl, or silyl substituted by C₁ to C₅ alkyl or phenyl, and R⁶ is C₁ to C₄ alkyl which may be substituted by halogen or phenyl which may be substituted by C₁ to C₄ alkyl); and n is an integer of O to 2, provided that X is OR⁵ and n is O when R is (β) or (ψ); X is neither halogen nor OSO₂R⁶ when R¹ is formyl; R² is not hydrogen when R⁵ is hydrogen; and R³ is not methyl when R⁵ is 1-ethoxyethyl.
摘要:
Die vorliegende Erfindung betrifft ein verbessertes Verfahren zur Herstellung von Acroleincyanhydrinen aus Blausäure und den entsprechenden Acroleinen. Das Verfahren zeichnet sich dadurch aus, dass die erhaltenen Acroleincyanhydrine einen sehr geringen Anteil an Blausäure aufweisen bzw. blausäurefrei sind und sich deshalb besonders gut als Zwischenprodukte für die Synthese von Glufosinaten eignen.
摘要:
A method of creating solvent extraction reagent formulations that have high conductivity by combining (a) phenolic oxime extraction reagent(s) or other extraction reagent(s) in the organic phase of a solvent extraction circuit of a metal recovery operation, comprising combining the phenolic oxime extraction reagent(s) or other reagent(s) with one or more ketone, nitrile and/or amide compounds, or mixtures thereof, to create an extraction reagent formulation with a conductivity of at least 4,000 pS/m, measured according to the provisions of BS 5958 Part I, as well as a method of creating an organic phase that has a high conductivity, preferably a conductivity of at least 250 pS/m, comprising adding to that organic phase in an extraction circuit a phenolic oxime extraction reagent formulation with one or more ketoxime, aldoxime, mixtures thereof, or one or more other extraction reagents, and one or more ketone, nitrile, or amide compounds, or mixture thereof, and novel ketone, nitrile and amide compounds.
摘要:
A novel substituted open-chain terpene compound of general formula (I) which is useful as an intermediate for the synthesis of sarcophytol A, wherein R is (α), (β), or (γ) (wherein R1 is cyano or formyl R2 is hydrogen or CO¿2?R?3, R3 is C¿1 to C4 alkyl, and R4 is -C=CH or -CH=CH¿2?); X is hydrogen, hydroxyl, halogen, OR?5¿ or OSO¿2R?6 (wherein R5 is hydrogen, 1-alkoxyalkyl, tetrahydrofuryl, tetrahydropyranyl, acyl, or silyl substituted by C¿1? to C5 alkyl or phenyl, and R?6 is C¿1 to C4 alkyl which may be substituted by halogen or phenyl which may be substituted by C1 to C4 alkyl); and n is an integer of 0 to 2, provided that X is OR5 and n is O when R is (β) or (γ); X is neither halogen nor OSO¿2?R?6 when R1¿ is formyl; R2 is not hydrogen when R5 is hydrogen; and R3 is not methyl when R5 is 1-ethoxyethyl.