Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Mark Wilhelm Drewes"'
Publikováno v:
Modern Methods in Crop Protection Research. :1-20
Publikováno v:
Modern Methods in Crop Protection Research
The demand for new herbicides, insecticides and fungicides led to a steady increase in the number of compounds being tested to find novel market products. To keep pace with the rising workload, high throughput screening (HTS) technologies have been i
Publikováno v:
Tetrahedron: Asymmetry. 1:375-378
α-Amino acids can be doubly benzylated at nitrogen, forming N,N-dibenzyl amino acids which can be converted into α-amino ketones 4 without appreciable racemization. The latter undergo stereoselective reduction with NaBH4 under non-chelation control
Publikováno v:
Pest management science. 59(8)
In order to study the mode of action of herbicides we conducted a pilot study analysing phenotype and gene expression of flufenacet- and benfuresate-treated Arabidopsis thaliana (L) Heynhoe plants. Treatments with either herbicide caused phenocopies
Publikováno v:
ChemInform. 21
The biologically important amino acid statine, (3S,4S)-4-amino-3-hydroxy-6-methylheptanoic acid, as well as optically active statine analogues, are readily accessible in the ester form by simple reduction of the corresponding N,N-dibenzyl β-keto est
Publikováno v:
Tetrahedron Letters. 29:3295-3298
The Lewis acid mediated cyanohydrin-forming addition of Me3SiCN to optically active α-dibenzylamino aldehydes 2 occurs stereoselectively. Chelation controlled adducts 3 result if MgBr2 or TiCl4 is used, whereas the diastereomers 4 are obtained upon
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 326:573-578
Optically active α-amino acids can be converted into the corresponding doubly protected N,N-dibenzyl α-amino aldehydes. These react diastereoselectively with Grignard reagents, lithium enolates and Me 3 SiCN/ZnX 2 to provide the nonchelation-contro
Publikováno v:
Angewandte Chemie International Edition in English. 26:1141-1143
Publikováno v:
Angewandte Chemie. 99:1186-1188
Publikováno v:
ChemInform. 19
The Lewis acid mediated cyanohydrin-forming addition of Me3SiCN to optically active α-dibenzylamino aldehydes 2 occurs stereoselectively. Chelation controlled adducts 3 result if MgBr2 or TiCl4 is used, whereas the diastereomers 4 are obtained upon