The present invention provides a method for promoting plant growth, which comprises treating a plant with a compound represented by the following Formula (1):
provided that a method for promoting plant growth which comprises treating plants with a compound corresponding to any one of the following (1) to (8) is excluded: (1) Methyl 4-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (2) Methyl 5-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (3) Methyl 6-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (4) Methyl 7-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (5) Ethyl 4-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (6) Ethyl 5-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, (7) Ethyl 6-(trifluoromethyl)benzo[b]thiophene-2-carboxylate, and (8) Ethyl 7-(trifluoromethyl)benzo[b]thiophene-2-carboxylate.
The Baeyer-Villiger Oxidation of Aromatic Aldehydes and Ketones with Hydrogen Peroxide Catalyzed by Selenium Compounds. A Convenient Method for the Preparation of Phenols
作者:Ludwik Syper
DOI:10.1055/s-1989-27183
日期:——
A series of organoselenium compounds was investigated as activators of hydrogen peroxide in the Baeyer-Villiger oxidation. As a result, a convenient and cheap method for transformation of aromatic aldehydes, having polycondensed ring systems or electron-donating substituents, and polymethoxy derivatives of acetophenone, into phenols was elaborated. This method utilizes hydrogen peroxide activated by areneseleninic acids, as oxidizing agent.
This invention is concerned with compounds of the formula
wherein A, R
1
to R
5
are as defined in the specification and G is a pyridine, quinoline or pyrimidine group as defined in the specification, and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.
enantioselective nucleophilic 1,2‐additions (ee values up to 97 %) from cheap, easily accessible, and never described before, chiral lithium amido zincates is presented. These multicomponent reactants auto‐assemble when mixing, in a 1:1 ratio, a homoleptic diorganozinc (R2Zn) with a chiral lithium amide (CLA). The latter, obtained after a single reductive amination, plays the role of the chiral inductor and is fully