摘要:
The present invention relates to a ligand compound, a catalyst system for ethylene oligomerization, and a method for ethylene oligomerization using the same. The catalyst system for ethylene oligomerization according to the present invention not only has excellent catalytic activity but also shows more improved liquid olefin selectivity, and enables more effective preparation of an alpha-olefin through the oligomerization of ethylene because it is particularly possible to control the selectivity to 1-hexene or 1-octene.
摘要:
This invention relates to a method to modulate exogenous gene expression in which an ecdysone receptor complex comprising: a DNA binding domain; a ligand binding domain; a transactivation domain; and a ligand is contacted with a DNA construct comprising: the exogenous gene and a response element; wherein the exogenous gene is under the control of the response element and binding of the DNA binding domain to the response element in the presence of the ligand results in activation or suppression of the gene. The ligands comprise a class of ketones.
摘要:
New phosphonamide compounds and methods of forming those compounds are provided. In one embodiment, the inventive methods comprise subjecting an opened-ring phosphonamide template to a ring-closing metathesis reaction in the presence of a ring-closing catalyst (e.g., a Grubbs catalyst) to yield a phosphonamide. In another embodiment, the inventive methods comprise reacting a template structure with a phosphorus (III) compound to yield the phosphonamide. Advantageously, in either embodiment, the template structures can be provided with a wide array of functional groups (e.g., amino acid side chains, peptides) chosen to provide particular properties to the compound.
摘要:
The invention relates to new piperidinyl-substituted pyridyl carboxamides of general formula (I), wherein the structure element E has meanings (E1) or (E2) and whereby the heterocyclic ring can optionally have a double bond. These substances have especially high cytostatic activities and pronounced immunosuppressive properties which make them suitable for therapeutic treatment in a broad tumor spectrum.
摘要:
This invention concerns phosphosulfonates having the general formula wherein
(1) Y is phenyl ; naphthyl ; benzyl ; (C 5 -C 8 )cycloalkyl ; a 5-membered heteroaromatic ring having from one to four heteroatoms each being independently N, O or S, provided that no more than one is O or S ; a 6-membered heteroaromatic ring having 1, 2 or 3 nitrogen atoms ; or a fused 5,6- or 6,6-membered heteroaromatic ring having from one to four heteroatoms each being independently N, O or S, provided that no more than one is O or S ; wherein Y optionally has up to three substituents, each being independently halogen, cyano, nitro, (C 1 -C 6 )alkoxy, halo(C 1 -C 4 )alkoxy, (C 1 -C 6 )alkyl, halo(C 1 -C 4 )alkyl, phenyl, (C 1 -C 4 )alkylcarbonyloxy, di(C 1 -C 4 )alkylcarbamoyl or (C 1 -C 4 )alkoxycarbonyl, provided that
(a) no more than one of said substituents is present when Y is a thiadiazolyl ring or a tetrazolyl ring, and (b) no more than two of said substituents is present when Y is a triazolyl ring, a thiazolyl ring, or an isothiazolyl ring, except that when Y is phenyl, naphthyl or benzyl, it may have up to five substituents each being independently halogen, acetoxy, methyl, methoxy or halomethoxy, but no more than two of which are acetoxy, methyl, methoxy, or halomethoxy;
(2) X is oxygen or sulfur ; and (3) R 1 and R 2 are each independently chloro, or (C 1 -C 6 )alkyl, (C 1 -C 6 )alkoxy, halo(C 2 -C 4 )alkoxy, (C 1 -C 4 )alkylthio, (C 3 -C 4 )alkenyloxy, (C 3 -C 4 )alkynyloxy, (C 1 -C 4 )alkoxy(C 1 -C 4 )alkoxy, (C 4 -C 8 )cycloalkyloxy, (C 3 -C 6 )cycloalkyl(C 1 -C 3 )alkoxy, cyano(C 1 -C 4 )alkoxy, (C 2 -C 4 )alkylideneiminooxy or amino each optionally substituted with one or two of (C 1 -C 4 )alkyl, (C 2 -C 4 )alkenyl or phenyl ; provided that there is not more than one phenyl group on the amino group ; also provided that R 1 may additionally be phenyl or phenoxy; and also provided that R 1 and R 2 may both be alkoxy so as to form together with the phosphorus atom a 6-membered oxygen-containing ring ; except that when R 1 and R 2 are both alkoxy, Y is not phenyl, 4-methylphenyl, 4-chlorophenyl, 4-bromophenyl or 3-nitrophenyl ; compositions containing these compounds and their use as herbicides.
摘要:
Des phosphinamides sont préparés par l'action d'un halogénure organique sur une oxazaphospholidine. Selon la configuration, désirée pour le stéréoisomère à obtenir, on utilise une oxazaphospholidine issue d'un aminoalcool optiquement actif (+) ou (-). Ces phosphinamides sont utiles à la préparation de phosphinates, en particulier de phosphinates optiquement actifs, de configuration absolue, connue; pour cela le phosphinamide est soumis à l'alcoolyse.
摘要:
There are described pesticidal compositions comprising one or more compounds of the formula 1, in which Ra is a group R 2 or -OR 2 ,
E is oxygen or sulphur, Rm is-O ⊖ M ⊕ or -NRyRz, M ⊕ is one equivalent of an agriculturally acceptable cation, R 1 and R 2 , which may be the same or different, each represent hydrogen, alkyl, alkenyl, alkynyl or aryl; the alkyl, alkenyl, alkynyl or aryl optionally being substituted by one or more halogen, alkoxy, nitro, alkyl, -CH 3 , nitrile, or carboxylic acid or a salt, ester, or amide thereof, and Ry and Rz, which may be the same or different, each represent hydrogen or alkyl, or an agriculturally acceptable derivative thereof.
There are also described methods for making and using compounds of formula I.