Abstract:
CYCLIC OLEFINICALLY UNSATURATED ETHERS CONTAINING 4 TO 5 RING CARBON ATOMS ARE ISOMERIZED BY CONTACT WITH A CATALYST CONTAINING NICKEL AND ARSENIC IN A HYDROGEN ATMOSPHERE. THE ISOMERIZATION REACTION IS FAVORABLY INFLUENCED BY THE PRESENCE OF CARBON MONOXIDE. THE ISOMERIZATION PRODUCTS ARE USEFUL SOLVENTS AND INTERMEDIATES FOR THE PREPARATION OF USEFUL CHEMICALS SUCH AS POLYMERS, POLYFUNCTIONAL ALCOHOLS AND THE LIKE.
Abstract:
AROMATIC COMPOUNDS, SUCH AS, FOR EXAMPLE, BENZENE AND NAPHTHALENE, ARE REACTED WITH HALOTETRAHYDROPYRANS IN THE PRESENCE OF A LEWIS ACID ALKYLATION CATALYST SUCH AS, FOR EXAMPLE, ALUMINUM CHLORIDE, TO YIELD ARYL-TETRAHYDROPYRANS.
Abstract:
NOVEL BIS-TETRAHYDROPYRANYL SULFIDES ARE PREPARED BY REACTING A HALO-TETRAHYDROPYRAN WITH AN ALKALI METAL OR AN ALKALINE EARTH METAL SULFIDE. BIS-TETRAHYDROPYRANYL SULFONES AND SULFOXIDES CAN BE PREPARED BY OXIDIZING THE BIXTETRAHYDROPYRANYL SULFIDE WITH HYDROGEN PEROXIDE.
Abstract:
A 3-HALOALKY HYDROCARBONCARBONXYLATE AND A 4-HALOTETRAHYDROPYRAN ARE PRODUCED BY REACTING A 1-ALKENE, (HCHO)N'' A HYDROGEN HALIDE AND AN ACID HALIDE AT A TEMPERATURE IN THE RANGE OF -80 TO -30* C., WHEREIN N IS THE INTEGER 1 OR GREATER.
Abstract:
PRODUCTION OF 2-HYDROXYMETHYLETETRAHYDOROPYRANS AND 3 - HYDROXYMETHYLTETRAHYDROPYRANS IN HIGH YIELDS IS EFFECTED BY HYDROFORMYLATION OF 3,6 - DIHYDRO - 2- (H)PRYANS IN THE PRESENCE OF CO, HYDROGEN, AND AN OXO CATALYST.