Abstract: Methods for preparing enantiomerically enriched aminopentanenitriles are provided. The methods involve selective acylation of an enantiomeric mixture of 3-aminopentanenitrile or selective hydrolysis of an enantiomeric mixture of 3-aminopentanenitrile amide in the presence of an enzyme selected from the group comprising lipase, esterase, and acylase. The methods yield R-aminopentanenitrile, which can be used to produce pharmaceutical products.

Abstract: Methods for preparing enantiomerically enriched aminopentanenitriles are provided. The methods involve selective acylation of an enantiomeric mixture of 3-aminopentanenitrile or selective hydrolysis of an enantiomeric mixture of 3-aminopentanenitrile amide in the presence of an enzyme selected from the group comprising lipase, esterase, and acylase. The methods yield R-aminopentanenitrile, which can be used to produce pharmaceutical products.

Abstract: A rig for bait casting sandshrimp tails, and method for using the rig. A fish hook is attached to a forward end of fishing line leader. The forward end of a longitudinally elongated bait threader is attached to a rear end of the leader. A buoyant, bowling-pin-shaped, bobber is slidably mounted on the leader between the hook and threader. The rear end of the threader is pointed. In use, the pointed end of the threader is inserted longitudinally through a sandshrimp tail. The tail is moved forward over and past the threader, thence forward along the leader and onto the bobber so as to substantially enclose and surround the bobber. The rear end of the threader is then attached to a double swivel that is coupled to a weight and a fishing line.

Abstract: Methods for preparing (S)-N-tert-butyl-1,2,3,4-tetrahydro-3-isoquinoline-carboxamide ("tic-c"), and converting tic-c to (S)-decahydroisoquinoline-3-carboxylic acid t-butylamide ("tic-d") are disclosed. The initial step in the formation of tic-c involves the phosgenation of a substituted tetrahydroisoquinoline to form an N-carboxy anhydride. Tic-d is used as an intermediate in the synthesis of known compounds having pharmaceutical activity.

Abstract: An apparatus having a frame adapted for earth traversing movement in a direction of travel and having portions laterally positionable with respect to the direction of travel, a work implement pivotally mounted on the laterally positionable portion of the frame for motion therewith relative to a predetermined axis through a range of selected operative positions, and a device for securing the work implement relative to the predetermined axis in a selected one of the operative positions for operation during movement of the frame along the path of travel.

Abstract: A hay rake assembly is characterized by the use of two, three, or even more individual hay rakes which are towed behind a single towing vehicle. Each of the rakes is on an individual gooseneck which is under hydraulic control from the towing vehicle so that it will swing out to establish its own swath, independently of the other rakes, on command from the operator of the towing vehicle. This yields great flexibility in the raking of hay and combining of windrows, and the apparatus is also characterized in that each rake may be reversed on its gooseneck so that the hay rake is converted into a tedding machine. Several other angular and elevational adjustment of the rake basket, most of which are hydraulic, also represent part of the invention.

Abstract: An apparatus having a frame adapted for earth traversing movement in a direction of travel and having a portion laterally positionable with respect to the direction of travel, a work assembly pivotally mounted on the laterally positionable portion of the frame for movement therewith, and an arm interconnecting the work assembly and the frame to pivot the work assembly through a plurality of positions relative to the direction of travel as the portion of the frame is laterally positioned.