Abstract:
The invention relates to a process for preparing 2-(4-trifluoromethoxyphenyl)ethylamine in an advantageous manner by (a) converting trifluoromethoxybenzene by halomethylation into halogenomethyl-1-trifluoromethoxybenzene, (b) converting the halogenomethyl-1-trifluoromethoxybenzene by halogen-cyano exchange into 4-(trifluoromethoxyphenyl)acetonitrile, and (c) reducing the 4-(trifluoromethoxyphenyl)acetonitrile using hydrogen in the presence of a nickel catalyst to form 2-(4-trifluoromethoxyphenyl)ethylamine. The first step of this process also represents an advantageous process for preparing 4-bromomethyl- and 4-chloromethyl-1-trifluoromethoxybenzene.
Abstract:
Trifluoromethyl-substituted biphenylcarboxylic acids are prepared by converting methyl-substituted biphenylcarbonitriles into the corresponding trichloromethyl-substituted biphenylcarbonitriles, converting the trichloromethyl group thereof to a trifluoromethyl group and thus obtaining trifluoromethyl-substituted biphenylcarbonitriles, and preparing the corresponding carboxylic acids therefrom by hydrolysis. A number of intermediates arising during this are novel compounds.
Abstract:
Trifluoromethyl-substituted biphenylcarboxylic acids are prepared by converting methyl-substituted biphenylcarbonitriles into the corresponding trichloromethyl-substituted biphenylcarbonitriles, converting the trichloromethyl group thereof to a trifluoromethyl group and thus obtaining trifluoromethyl-substituted biphenylcarbonitriles, and preparing the corresponding carboxylic acids therefrom by hydrolysis. A number of intermediates arising during this are novel compounds.
Abstract:
Fluorine-containing phenethylamines are obtained in an advantageous manner by reacting fluorine-containing bromobenzenes with acrylamide in the presence of a palladium catalyst, hydrogenating the resulting arylacrylamides catalytically and then rearranging the arylamides obtained. The invention also embraces novel arylacrylamides and novel arylamides.
Abstract:
The present invention relates to a process for preparing fluorine-containing phenethylamines which is characterized in that, in a first step, a substituted bromobenzene is reacted with an N-vinylimide in the presence of a palladium catalyst, in a second step, the resulting substituted &bgr;-iminovinylbenzene is hydrogenated catalytically and in a third step, the substituted &bgr;-iminovinylbenzene obtained in the second step is cleaved. This process also provides access to novel &bgr;-iminovinyl- and &bgr;-iminoethylbenzenes.
Abstract:
A locking apparatus for a vehicle seat, particularly for a motor vehicle seat, includes a locking mechanism (23) for mechanically locking a moveable catch (31) of the locking mechanism (23) with a counter element (B), and an actuator device (24, 50) for actuating the catch (31) via a drive. A housing (20) is provided in which the locking mechanism (23) is arranged and housed. Improved safety against injuries of vehicle passengers that occur due to non-locked backseat backrests is provided with a motor-driven device for creating a lock of the locking mechanism (23).
Abstract:
A dispensing device for a dental substance is provided which has an outlet for the dental substance, and a valve for opening and closing the outlet. The device is switchable between a storage mode and an operative mode. In the storage mode a cannula is locked in the device and the valve opens the outlet, and in the storage mode the cannula can be released from the device and the valve closes the outlet. The device may facilitate handling and may be relatively inexpensive.
Abstract:
A locking mechanism (1) for a vehicle seat, particularly for a motor vehicle seat, includes a latch that is to be interlocked with an opposite element (B) and is mounted to be pivotable about a first bearing bolt (13), at least one securing element (25, 31) that secures the latch (11) in the locked state, and a lock housing (5) which supports the latch (11) and the securing element (25, 31). The lock housing (5) has an integrated first stop (5a) for the opposite element (B). The stop (5a) has a damping effect when the opposite element (B) rests against the lock housing (5).
Abstract:
A locking mechanism (1) for a vehicle seat, particularly for a motor vehicle seat, includes a latch (11) that is to be interlocked with an opposite element (B) and is mounted to be pivotable about a first bearing bolt (13), and at least one securing element (25, 31) that secures the latch (11) in the locked state. A cap (17) which rests on the latch (11) covers at least part of the edge of a hook opening of the latch (11).
Abstract:
A locking device for a vehicle seat, in particular for a motor vehicle seat, is provided with a locking mechanism for the mechanical locking of a movable catch of the locking mechanism with a counter-element, and with an actuator unit for the actuation of the catch via a drive. A hosing is provided in which the locking mechanism is arranged and mounted, with regard to the required installation space. The locking device provides the possibility of the formation of structurally different variants of the locking device. The actuator unit (4) is arranged in the housing as a shared housing (2) together with the locking mechanism (3).