Equilibria and dynamics of rhenium uptake from nitrate, chloride and sulfate matrices using weak base anion exchangers have been studied. Gel-type IRA-67 containing tertiary amine groups and macroporous WP-1 containing primary, secondary and tertiary groups were used. Experimental equilibrium an...

A truly continuous countercurrent moving bed ion exchange system is described. Test data for a 15,000 gpd laboratory unit is presented which verifies the basic feasibility of the system. The system is shown to be particularly suitable for large scale membrane softening pretreatment and brackish ...

De-branched nagstatin and its analogs have been synthesized from protected L-ribo- and xylofuranoses through the inter- and intra-molecular nucleophilic reactions with the imidazole moieties.

The first enantiospecific total synthesis of nagstatin has been accomplished through the regioselective introduction of an allyl group on the imidazole ring of the de-branched nagstatin precursor followed by conversion into the carboxymethyl group, and the stereospecifc introduction of the aceta...

The double Michael addition of benzylamine to 3-alkyl-2,7-cyclooctadienones, followed by hydrogenolysis, affords bridgehead substituted 9-azabicyclo[3.3.1]nonan-3-ones. Use of (+)-α-methylbenzylamine in the addition leads to mixtures of diastereomeric adducts in unequal amounts. Although the de...

Laboratory studies were conducted to determine the effects of different concentrations of fenhexamid and atrazine (25, 50 and 100 µg L−1) on growth and oxidative stress on Scenedesmus obliquus (microalgae) after exposure for 24, 48, and 96 h. In addition, residues of fenhexamid and atrazine wer...

Fenhexamid (25%, SC) was sprayed on pepper fruits grown under greenhouse conditions at the recommended dose rate of 20 g/20 L water. Fruit samples were collected randomly at 0 (2 h after application), 1, 2, 4, 6, 8, 11, and 14 days post-application. The samples were extracted with acetonitrile, ...

Pesticide contamination of the environment can result from agricultural practices. Persistence of pesticide residues is a threat to the soil biota including plant roots and beneficial microorganisms, which support an important number of soil ecosystem services. Arbuscular mycorrhizal fungi (AMF)...

Grapes from Vitis vinifera var. Tempranillo and Graciano of La Rioja (North Central Spain) were vinified after addition of two fungicides (mepanipyrim and fenhexamid) at concentrations corresponding to their MRLs. These fungicides are commonly used in the vine growing to control botrytis disease...

Metamitron (Meta), 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5-one, and fenhexamid (Fen), N-(2,3-dichloro-4-hydroxyphenyl)-1-methylcyclohexanecarboxamide, are active substances of herbicide and fungicide products, respectively, employed in agriculture. When these molecules are spread on crops, an ...

ABSTRACTFenhexamid and cyprodinil are antifungal agents (pesticides) used for agriculture, and are present at measurable amounts in fruits and vegetables. In the current study, the effects of fenhexamid and cyprodinil on cancer cell proliferation and metastasis were examined. Additionally, the p...

The gray mold fungus Botrytis cinerea features a wide host range and causes severe economic losses, making it an important object for molecular research. Thus far, genetic modification of the fungus mainly is relied on two selection systems (nourseothricin and hygromycin), while other selection ...

Grape bunch rot caused by Botrytis cinerea is one of the major fungal diseases of grapevine (Vitis vinifera L.) worldwide. Besides crop cultural measures, botryticides are used on a regular basis for controlling bunch rot. To investigate the impact of (i) the time of application and (ii) the met...

Fenhexamid is a hydroxyanilide fungicide with excellent performance against Botrytis cinerea but also effective against Monilinia spp. which cause brown rot disease in apple and stone fruit. A total of 75 Monilinia laxa field isolates were utilized to determine baseline sensitivity while a numbe...

Fenhexamid, as a hydroxyanilide, is widely applied to control Botrytis cinerea for protecting crops and fruits. But it could adversely affect human and animals health due to accumulation of residues in food production. Here, the affinity characteristics of fenhexamid on bovine serum albumin (BSA...

The mutagenicities of the five possible isomers of bromomethylfluoranthene, chloromethylfluoranthene, and hydroxymethylfluoranthene were determined in the Ames assay using strains TA100 and TA98 without the addition of rat-liver S9 tissue extract. The mutagenicities of the bromomethyl and chloro...

A catalytic antibody which catalyzes stereoselective ester hydrolysis was characterized, and the role of a catalytic Arg residue is discussed in terms of product inhibition. A monoclonal antibody 1C7 generated against the phosphonate 1 was highly stereoselective for (R)-isomer in hydrolyzing rac...

Reductive amination of aldehydes and ketones using sodium cyanoborohydride and Rink's 4-(2′,4′-dimethoxyphenyl-aminomethyl)-phenoxymethyl-linked polystyrene resin [Rink's amine linker on copoly-(styrene-1%-divinylbenzene)]1 2 affords high yields of linker-bound, N-alkyl amines with e...

Two new organotin(IV) complexes with dianionic dipeptides containing the α-aminoisobutyryl residue (Aib) as ligands are described. The solid complexes [(n-Bu)2Sn(H−1LA)] · 2MeOH (1 · 2MeOH) (LAH = H-Aib-L-Leu-OH) and [(n-Bu)2Sn(H−1LB)] · MeOH (2 · MeOH) (LBH = H-Aib-L-Ala-OH) have been isol...

In the present research work, the motto was to develop new chemical entities as potential anti-inflammatory, analgesic and antipyretic agents. Various 4-(2-amino-6-(substituted)pyrimidin-4-yl)-3-methyl-1-(substituted)-1H-pyrazol-5(4H)-one derivatives (5a–5j) and their Schiff bases (6a–6j) were...