33482-80-3

Upstream product

• 51238-67-6 1,3-dichloro-5,5-dimethyl-cyclohexa-1,3-diene 
• 126-81-8 dimedone 
• 51335-83-2 (1R,3S)-5,5-dimethylcyclohexane-1,3-diol 
• 597-98-8 5,5-dimethyl-cyclohexane-1,3-diol 
• 590-18-1 (Z)-2-Butene 
• 624-64-6 trans-2-Butene 
• 147274-53-1 (+/-)-4,4-dimethylcyclohex-2-en-1-yl acetate 
• 69719-45-5 2-methyl-2,3,5-heptatriene 
• 62461-14-7 N'-(4,4-dimethylcyclohex-2-en-1-ylidene)-4-methylbenzenesulfonohydrazide 
• 5020-09-7 4,4-dimethyl-2-cyclohexen-1-ol 

Downstream Products

• 4573-05-1 1,3-dimethyl-1,3-cyclohexadiene 
• 14072-86-7 4,4-dimethylcyclohexene 
• 695-28-3 6,6-dimethylcyclohexadiene 
• 2050-32-0 2,6-dimethyl-1,3-cyclohexadiene 
• 1453-17-4 1,5-dimethyl-1,3-cyclohexadiene 
• 68234-25-3 8,8-dimethyl-3-phenyl-2-oxa-3-aza-bicyclo[2.2.2]oct-5-ene 
• 35934-83-9 3,3-dimethyl-1,4-cyclohexadiene 
• 108-88-3 toluene 
• 108-38-3 m-xylene 

Relevant academic research and scientific papers

CONDENSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME

A condensed polycyclic compound is represented by the following Formula [1]: wherein in Formula [1], R1 to R16 each represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, a substituted amino group, an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group, provided that at least one of R1, R2, R7 and R8 is an aryl group that may optionally have a substituent group, or a heterocyclic group that may optionally have a substituent group.

Silylium cationic polymerization activators for metallocene complexes

Catalyst systems useful in addition polymerization reactions comprising a Group 4 metal complex and a silylium salt activating cocatalyst are prepared by contacting the metal complex with a silylium salt of a compatible, non-coordinating anion, optionally

Pyrethrinoid esters

A compound in all possible stereoisomeric forms and their mixtures of the formula STR1 wherein X is selected from the group consisting of hydrogen, --CN, alkyl, alkenyl and alkynyl of up to 4 carbon atoms and aralkynyl of up to 10 carbon atoms, Y is selec

Metal (III) complexes containing conjugated, non-aromatic anionic II-bound groups and addition polymerization catalysts therefrom

Novel Group 4, Group 3 or Lanthanide metal complexes wherein the metal is in the +3 formal oxidation state containing a cyclic or non-cyclic, nonaromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives

Metal complexes containing partially delocalized II-bound groups and addition polymerization catalysts therefrom

Novel Group 4 metal complexes wherein the metal is in the +2 or +4 formal oxidation state containing a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexe

Study of the Substituted Vinylallene-Methylenecyclobutene Electrocyclic Equilibria. Comparison with the Butadiene-Cyclobutene and Bisallene-Bismethylenecyclobutene Electorcyclic Equilibria

A number of substituted vinylallenes and 3-alkylidenecyclobutenes have been prepared and their electrocyclic reactions studied.The electrocyclic ring-closure equilibria of the parent vinylallene, 1,2,4-pentatriene (5), has been determined at a number of temperatures in the gas phase, and the thermodynamic parameters have been calculated.Theoretical calculations have been carried out on 5a, 5s, and 6 at the fully geometry optimized 6-31G* level with further single-point calculations being carried out at the MP2/6-31G* level and with zero-point energy corrections.Thermodynamic calculations on the 5-6 system have also been carried out using Benson's method.The correlation between the experimental and calculted thermodynamic parameters is excellent, indicating that 6 is enthalpically favored, while 5 is entropically favored.These results are compared with similar calculations on the butadiene-cyclobutadiene and bisallene-3,4-bisalkylidenecyclobutene systems in which in the former the butadiene is heavily enthalpically favored and in the latter the bisalkylidenecyclobutene is heavily enthalpically favored.The observed trends in the electrocyclic equilibria are discussed in terms of the relative heats of formation of the open-chain compounds which differ substantially.With the 2-substituted 1,3,4-hexatrienes 9, 11, and 13, equilibrium constants were obtained in the gas phase at 360 and 435 deg C, allowing for the calculation of the equilibrium thermodynamic parameters.However, with the 1-substituted systems 15 and 19 the corresponding ring-closed products 16 and 20 could not be detected.Heating 15c or 15t produces 18.The transformation of 15t to 18 involves isomerization of 15t to 15c,presumably via 16, which undergoes electrocyclic ring closure to 17 followed by a -hydrogen sigmatropic rearrangement.Heating a mixture of 19c and 19t at 360 deg C produces a mixture of 21 and 22, and a third compound tentatively assigned structure 23.The transformation of 19t to 19c is believed to proceed via 20, which then undergoes a -sigmatropic rearrangement to 21 followed by ring closure to 22.Substituents in the 4-position of the 3-isopropylidenecyclobutene apparently destabilize the cyclic structures, which shifts the equilibria in favor of the acyclic trienes, which when having a group at the 1-position are able to undergo other types of reactions.

Investigation of Rearrangement Reactions of Cyclic Allyl and Pentadienyl Anions

Bicyclohexenyl anion (1) and bicycloheptenyl anion (2) rearrange in THF to monocyclic pentadienyl anions, whereas bicyclooctenyl anion 3 is stable under the reaction conditions. 3 in contrary is formed by the known electrocyclic ring closure of cyclooctadienyl anion 7.Rearrangements of cyclopentenyl anion and pentadienyl anion are not detected.Cyclic allyl anions are alkylated by ethene, formed by cleavage of THF with base or independently added. 6,6-Dimethylcyclohexadienyl anion undergoes slow fragmentation to toluene at room temperature.