The amidation and esterification of carboxylic acids with amines and hydroxyl group-containing compounds, respectively, are effected without incurring the drawbacks of reaction equilibrium by the reaction of the reactants, one of which has been activated in the reactive group by contact with a phosphonium salt obtained by reacting a phosphorous ester or phosphorous monoester salt with an organic base such as pyridine and an oxidizing agent such as halogens and mono or divalent mercury halide or ...

.alpha.-Amino(1,3-dithiin-5-yl)-acetic acid in the D-, L-, or D,L-form and in which the amino radical is free or protected by tert.-butoxycarbonyl or 2,2,2-trichloroethoxycarbonyl is a useful intermediate in the preparation of cephalosporins having valuable antibacterial activity.

An improved granular dietetic protein concentrate is produced by incorporating 2 to 5 parts of casein into 6 parts of moist fat-free or low fat milk curds; allowing the mixture to swell; and granulating and drying the swollen mixture to a product containing curds and casein in a dry solids ratio of from 1:1 to 1:5.

A novel catalyst precursor which comprises a Group IV-B transition metal oxide deposited on the surface of an inorganic metal oxide support, preferably alumina; especially where the Group IV-B transition metal oxide is deposited on the support surface as discrete areas separated by areas of support surface which contain little, if any, of said Group IV-B transition metal oxide; and a catalyst composition comprised of a cluster of a Group IV-B transition metal oxide and a Group VIII metal prefera...

A process is provided for producing polyhexamethylenimine by condensing hexamethylenediamine at 50.degree. to 300.degree. C. in the presence of a palladium catalyst. The process yields substantially linear, high-molecular-weight polyhexamethylenimines, especially novel polyhexamethylenimines having a molecular weight of at least 1,000. Polyhexamethylenimines having a molecular weight of at least 500 are useful as gelling agents for organic liquids.

Macrosized catalysts suitable for promoting chemical reactions, especially to reduce pollutants in waste gas streams such as automobile exhaust, are described. The catalysts have one or more metal components, especially a platinum group metal component, as a catalytic promoter combined with a high surface area, refractory oxide support on a relatively catalytically-inactive carrier, especially a monolithic carrier which may be of the honeycomb type. An aqueous solution of an alumina precursor is...

Unprepared pieces of meat, such as sheep heads, pig feet, and the like, or fishes and crustaceas, are treated by trituration with crushing under pressure so as to yield a soft product adapted to be a foodstuff, in which the elements of components stay several millimeters long, which gives the product a good aspect for appetency.

A thermosetting resin which is a linear copolymer having a molecular weight of 10,000 to 1,000,000 and a glass transition point of -30.degree. to +80.degree. C., obtained by polymerizing in an aqueous medium a monomer mixture comprising (1) 0.1 to 50% by weight of at least one polymerizable monomer having an ampho-ionic structure, selected from the group consisting of (i) compounds representable by the formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 ar...

A method of suppressing appetite which comprises ingesting an amount of 20-60 grams effective to suppress appetite of a granulated dietetic foodstuff having a low rate of decomposition in the digestive tract consists essentially of a dried mixture of fat-free or low fat milk curds and casein in a dry solids ratio of about 1:1 to about 1:5, and having a particle size between about 0.5 and 5 mm, which is prepared by a process which comprises the steps of incorporating 2-5 parts of casein into 6 pa...

A process for the conversion of a stereoisomer into its diastereoisomer of a compound having the following general formula: ##STR1## (wherein the asterisk denotes an asymmetric carbon atom; each X is individually hydrogen, alkyl, aryl, alkaryl, aralkyl, alkoxy, aryloxy, halogen, nitro, hydroxy or cyano; R is an organic residue containing one or more centers of asymmetry; and n is 1 to 5), which comprises subjecting the said stereoisomer to the action of an alkali metal carbonate and an inert pol...