摘要:
A process for the production of a nitrile having three to 12 carbon atoms per molecule by contacting at a temperature of 400* to 500* C and a contact time of 10 to 0.1 seconds a gaseous mixture of hydrocarbons of three to 12 carbon atoms containing the group AND AMMONIA WITH AN IRON AND ARSENIC CONTAINING CATALYST HAVING AN ATOMIC RATIO OF IRON TO ARSENIC OF 1.1:1 TO 10:1 PREPARED BY ADDING AN AQUEOUS ARSENATE SALT SOLUTION TO AN AQUEOUS FERRIC SALT SOLUTION, ADJUSTING, THE PH value of the resulting solution to between 0.5 and 6, evaporating and calcining the product.
摘要:
Compounds of the formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, cyano, nitro, S(O).sub.n R wherein R is C.sub.1 -C.sub.4 alkyl and n is the integer 0, 1 or 2; and R.sup.2 through R.sup.8 are hydrogen or certain substituents, their salts, herbicidal compositions containing the compound or salts and the herbicidal use thereof.
摘要:
A liquid crystalline compound of the general formula ##STR1## wherein ##STR2## represents ##STR3## R and R', independently from each other, represent a linear alkyl group having 1 to 10 carbon atoms, an alkoxymethylene group whose alkoxy moiety has 1 to 10 carbon atoms, a cyano group or a halogen atom, and n and m, independently from each other, represent 0 or 1.
摘要:
Compounds of the formula I ##STR1## in which A is C.sub.2-12 -alkenyl, C.sub.4-8 -cycloalkenyl or a grouping--C(R).dbd.C(R')--Y and Y, R, R', R.sub.1, R.sub.2, R.sub.3 and R.sub.3 ' are as defined in patent claim 1, can be prepared in high yields in a simple and economical manner by reacting corresponding bromobenzenes or iodobenzenes with a compound HA in the presence of an alkali metal salt or alkaline earth metal salt of an aliphatic monocarboxylic acid having 1-12 C atoms or benzoic acid, of a cyclic or N,N-disubstituted amide as the solvent, particularly N,N-dimethylformamide, and of a palladium compound which can, if desired, contain arsenic or phosphorus, as the catalyst.
摘要翻译:其中A是C2-12链烯基,C4-8-环烯基或分组-C(R)= C(R')-Y和Y,R,R'的式I的化合物(I) R 1,R 2,R 3和R 3'如专利权利要求1中所定义,可以通过在碱金属盐或碱土金属存在下使相应的溴苯或碘苯与化合物HA反应,以高产率简单经济地制备 具有1-12个碳原子的脂族一元羧酸或苯甲酸的盐,作为溶剂的环状或N,N-二取代的酰胺的盐,特别是N,N-二甲基甲酰胺,以及如果需要,含有砷的钯化合物 或磷,作为催化剂。
摘要:
A process for direct fluorination of etherified or unetherified hydroxy group-bearing aromatic compounds, which comprises reacting an etherified or unetherified hydroxy group-bearing aromatic compound with fluorine gas to give the corresponding etherified or unetherified hydroxy group and at least one fluorine atom-bearing aromatic compound.
摘要:
Novel compounds exhibiting antiviral activity are disclosed, such compounds are represented by the formula: ##STR1## wherein m represents the integer 0, 1 or 2; R represents trihalomethyl, alkyl or phenyl; R.sub.1 represents hydrogen, bromo, chloro, fluoro, cyano, nitro, amino, alkyl, alkoxy or trifluoromethyl; R.sub.2 represents hydroxyl, bromo, chloro, fluoro, cyano, acetyl, benzoyl, substituted benzoyl, alkyl, alkoxy, substituted alkoxy, benzyl, substituted benzyl, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl, or the radical --O(CH.sub.2).sub.n R.sub.4 wherein n represents the integer 1, 2 or 3 and R.sub.4 represents cyano or dialkylamino; R.sub.3 represents hydrogen, hydroxyl, bromo, chloro, fluoro, cyano, acetyl, benzoyl, substituted benzoyl, alkyl, alkoxy, substituted alkoxy, benzyl, substituted benzyl, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl, or the radical --O(CH.sub.2).sub.n R.sub.4 wherein n represents the integer 1, 2 or 3; and R.sub.4 represents cyano or dialkylamino; or alternatively R.sub.2 and R.sub.3 taken together represent the radical --O--C(X).sub.2 --O-- wherein X represents hydrogen, bromo, chloro or fluoro.
摘要翻译:公开了具有抗病毒活性的新型化合物,这些化合物由下式表示:其中m表示整数0,1或2; R代表三卤甲基,烷基或苯基; R 1表示氢,溴,氯,氟,氰基,硝基,氨基,烷基,烷氧基或三氟甲基; R 2表示羟基,溴,氯,氟,氰基,乙酰基,苯甲酰基,取代的苯甲酰基,烷基,烷氧基,取代的烷氧基,苄基,取代的苄基,烷硫基,烷基亚磺酰基,烷基磺酰基,烷基氨基磺酰基,二烷基氨基磺酰基或基团-O(CH 2)n R 4 其中n表示整数1,2或3,R 4表示氰基或二烷基氨基; R 3表示氢,羟基,溴,氯,氟,氰基,乙酰基,苯甲酰基,取代的苯甲酰基,烷基,烷氧基,取代的烷氧基,苄基,取代的苄基,烷硫基,烷基亚磺酰基,烷基磺酰基,烷基氨基磺酰基,二烷基氨基磺酰基或基团-O )nR 4其中n表示整数1,2或3; 并且R 4表示氰基或二烷基氨基; 或者R2和R3一起代表基团-O-C(X)2-O-,其中X表示氢,溴,氯或氟。
摘要:
Halonitroarylacetonitriles are prepared by reacting a halonitroaromatic compound wherein the halo substituent has an atomic number of at least 17 with an alpha,alpha-disubstituted acetonitrile in an inert solvent and in the presence of a base so that the nitrile undergoes a nucleophilic substitution on an unsubstituted ring carbon of the halonitroaromatic compound during which an alpha-substituent functions as a leaving group. The halonitroarylacetonitriles formed by the process can be readily converted into derivatives, such as pharmaceuticals.
摘要:
Fluoronitrolarylacetonitriles are prepared by reacting a fluoronitroaromatic compound having a nitro substituent, at least one fluoro substituent, and at least one replaceable hydrogen on (1) a benzene ring bearing at least one other innocuous substituent, (2) a heterocyclic aromatic ring, or (3) a carbocyclic aromatic ring of a polycyclic ring structure with an alpha,alpha-disubstituted acetonitrile in an inert solvent and in the presence of a base so that the nitrile undergoes a nucleophilic substitution on an unsubstituted ring carbon of the fluoronitroaromatic compound during which an alpha-substituent functions as a leaving group.
摘要:
Novel 1-aryloxy-3-amidoamidoalkylamino-2-propanol derivatives, processes for their manufacture, pharmaceutical compositions containing them and methods of using them in the treatment of heart diseases. Representative of the compounds disclosed is 1-(o-cyanophenoxy)-3-.beta.-(2-thenamidoacetamido)ethylaminopropan-2-ol.