摘要:
Hydrocarbon solutions containing iodine or iodine-containing impurities are rendered essentially color-free by distillation in the presence of small amounts of a hydrocarbon soluble organometallic compound.
摘要:
A process for increasing the reaction rate of condensation reactions which occur between non-conjugated non-aromatic olefinically unsaturated hydrocarbons and active hydrogen-containing organic compounds in the presence of alkali metal comprising carrying out the reaction in the presence of titanium metal.
摘要:
A process whereby alkyl-substituted aromatics are alkylated with a monoolefin in the presence of an alkali metal catalyst and a promoter composition selected from the group consisting of (1) naphthalene, at least one tertiary amine, and at least one tertiary alcohol or alkali metal salt thereof, and (2) naphthalene and at least one tertiary alcohol or alkali metal salt thereof.
摘要:
Isomerization of the cis,trans isomers of 1,2,5,6-tetrasubstituted-1,5-cyclooctadienes to the corresponding cis,cis-isomers is carried out by contacting the cis,trans isomers with a halogen promoter in the presence of a suitable solvent in the absence of light.
摘要:
Novel copolymers are produced by polymerizing 2,3-dicyano-substituted 1,3-dienes with at least one monomer copolymerizable therewith selected from conjugated dienes and vinylaromatic compounds. Some of the copolymeric products are elastomeric while others are thermosetting.
摘要:
The alkylation of para-substituted isopropyl benzenes with dipentenes employing an aluminum halide catalyst system produces novel tetracyclic compounds.
摘要:
Hydrocarbon solutions containing iodine or iodine-containing impurities are rendered essentially color-free by distillation in the presence of small amounts of a hydrocarbon soluble organometallic compound.
摘要:
The self condensation of monovinyl aromatic compounds to acyclic dimers, the cross-reaction of monovinyl aromatic compounds with olefins in the presence of acid catalysts to produce cyclialkylated aromatic compounds, and the production of cyclialkylated aromatic compounds by reaction of olefins with acyclic dimers of monovinyl aromatic compounds in the presence of acid catalysts is improved by employing a tetrahydrothiophene 1,1-dioxide solvent.
摘要:
The alkylation of aromatic compounds with olefinic compounds is catalyzed by catalyst consisting essentially of aluminum halide and elemental iodine.