摘要:
An organic peroxide is hydrogenated to produce the corresponding mono- or polyhydric alcohol in a suspensoid process or a fluidized bed process in the presence of more than 3 wt. % of a nickel catalyst at a reaction temperature of 140.degree. to 200.degree. C under a hydrogen pressure of 10 to 300 Kg/cm.sup.2 by feeding the organic peroxide at a rate of 0.05 to 10 g/hr. per 1 g of the nickel catalyst.
摘要翻译:氢化有机过氧化物以在悬浮液过程或流化床方法中在大于3重量%存在下制备相应的一元醇或多元醇。 通过以0.05至10g / hr的速率喂入有机过氧化物,在140至200℃的反应温度和10至300Kg / cm 2的氢气压力下的镍催化剂的%。 每1g镍催化剂。
摘要:
The poisoned nickel catalyst obtained from the hydrogenation of an organopolymeric peroxide with hydrogen in an organic solvent is reactivated by treating the poisoned nickel catalyst with hydrogen in an oxygen containing polar organic solvent at 140.degree. - 250.degree. C.
摘要:
A poisoned Raney nickel catalyst from the hydrogenolysis of an organic peroxide polymer is reactivated by treating the catalyst with a 0.1-5 N solution of an activating reagent selected from the group consisting of ammonia, and an alkali metal or an alkaline earth metal hydroxide, carbonate or carboxylate having 1-4 carbon atoms at 20.degree.-200.degree.C under an inert gas atmosphere.
摘要:
A monohydric or polyhydric alcohol is produced by continuous hydrogenation of an organic peroxide in the presence of a nickel catalyst by continuously feeding a solution of the organic peroxide and a suspension of the nickel catalyst in a ratio of the organic peroxide to the nickel catalyst in the range of 10 : 1 to 0.1 : 1, and by continuously discharging the reaction mixture with the catalyst so as to maintain a constant weight and composition of the reaction mixture in the reactor.
摘要:
Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]-[IV]. ##STR1##
摘要:
Processes for producing optically active ester derivatives are disclosed. According to the present invention an optically active aryloxyphenoxy propionate derivative is produced by reacting a chlorinated heterocyclic aromatic compound with (2R)-2-(4-hydroxyphenoxy)propionic acid tetrahydrofurfuryl ester in an anhydrous solvent in the presence of a base. According to the present invention, an optically active propionate derivative of the formula [I] ##STR1## (wherein R represents hydrogen or 3-chloro-5-trifluoromethyl-2-pyridyl group) is produced by reacting a corresponding optically active methyl propionate derivative with tetrahydrofurfuryl alcohol, or by reacting a corresponding optically active propionic acid derivative with tetrahydrofurfuryl alcohol, or by reacting (2S)-tetrahydrofurfuryl 2-chloropropionate with a corresponding phenol derivative in specific conditions.
摘要:
An antifungal composition comprising an effective amount of carbamate derivative having the formula (I): ##STR1## where X is 2-naphthyl, 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, 2-quinolyl, or a phenyl group having one or two of the same or different substituents selected from the group of halogen atom, lower alkyl, lower alkenyl, lower alkoxy, lower alkenyloxy, halogenated lower alkyl, lower alkylthio, lower alkylsulfonyl, lower alkylamino, nitro, and methylenedioxy;Y is an oxygen atom or a sulfur atom;Z is lower alkyl group;W is pyridyl group having one or two of the same substituents selected from the group of lower alkyl, lower alkoxy, lower alkenyloxy, and lower alkylamino.
摘要:
Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]-[IV]. ##STR1##
摘要:
Tetrahydroisoquinoline derivatives useful as fungicides are disclosed of formula [I]: ##STR1## wherein R.sup.1 represents C.sub.1 -C.sub.5 linear or branched alkyl, C.sub.2 -C.sub.5 linear or branched alkenyl, C.sub.2 -C.sub.5 linear or branched alkynyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, the same or different, represent hydrogen, C.sub.1 -C.sub.10 linear or branched alkyl, C.sub.3 -C.sub.10 linear or branched alkenyl, C.sub.2 -C.sub.10 linear or branched alkynyl, C.sub.1 -C.sub.10 linear or branched alkoxy, C.sub.2 -C.sub.10 linear or branched alkenyloxy, C.sub.2 -C.sub.10 linear or branched alkynyloxy, benzyloxy, hydroxy, haloalkyl, amino, mono- or di-substituted amino substituted with C.sub.1 -C.sub.4 linear or branched alkyl, phenyl or halogen; R.sup.2 and R.sup.3 may be bonded through a group of the formula --O--CH.sub.2).sub.m O-- wherein m represents integer of 1 or 2 or --CH.dbd.CH).sub.2 to form a ring; and R.sup.4 and R.sup.5 may be bonded through a group of the formula --O--CH.sub.2).sub.m O-- wherein m represents an integer of 1 or 2 or --CH.dbd.CH).sub.2 -- to form a ring.