Abstract:
Apparatus and process for the cultivation of high-quality plants in greenhouses whose side walls can be slid open vertically and whose atmosphere can be moistened at the openings thus formed with cultivation of the plants in said greenhouse in pots supported in respective recesses in trays, which in turn are supported on parallel, spaced, horizontal arms of racks supporting said trays above the floor of the greenhouse, the air circulating through the greenhouse passing through said racks, and the side wall of each recess having an opening to allow overflow of water accumulated in each recess.
Abstract:
Manufacture of penta-2,4-dien-1-als comprising the reaction of propargyl alcohols with Alpha -formylcarboxylic esters at temperatures of from 100* to 350* C. Penta-2,4-dien-1-als are odorants.
Abstract:
Production of flat materials such as textiles, paper, leather and plastics printed bright and deep shades with pigments with substantial or complete exclusion of mineral spirit in the presence of small amounts of specific aliphatic esters.
Abstract:
The production of aldolization products from isobutyraldehyde and glyoxal in the presence of a tertiary amine and the new aldolization products themselves.
Abstract:
A process for the production of N-(o-cyanophenyl)-N,N''disubstituted formamidines bearing nitro substituents in the 4position or the 6-position comprising the nitration of the corresponding compounds having no nitro substituent. The process is distinguished by its high selectivity.
Abstract:
Preparation of indazoles by reacting o-toluidines with alkyl nitrites, esters of glycols or glycol derivatives with nitrous acid, and/or nitrous gases in the presence of acetic anhydride, an alkali metal salt of an alkanoic acid and an organic solvent followed by elimination of the acetyl group from the 1acetylindazole formed. The compounds prepared by the process of the invention are valuable intermediates in the manufacture of dyes, pharmaceuticals and pesticides.
Abstract:
A process for the production of pent-4-en-1-als which comprises reacting an allyl alcohol with an Alpha -formylcarboxylic ester at a temperature of from 100* to 350*C. Pent-4-en-1-als are perfumes and have a fresh fruity odor.
Abstract:
New and valuable process for controlling unwanted plants in important agricultural crops by treating the soil before emergence of the plants and treating the plants postemergence.
IN WHICH R1 is hydrogen or methyl; R2 is alkyl, cycloalkyl, aralykl or aryl or up to fourteen carbon atoms; R3 is tertiary alkyl or cycloalkyl of up to ten carbon atoms or ditertiary alkylene of eight to ten carbon atoms and n is 1 or 2. The new peroxides are suitable for the production of polymers containing isocyanate groups which are easily crosslinkable.